Easy Mexican Chicken Nacho Casserole: A Crowd-Pleasing Weeknight Dinner
Get ready to transform your dinner routine with this incredible Mexican Chicken Nacho Casserole! It’s the ultimate comfort food, bringing together everything you adore about vibrant Mexican cuisine into one deliciously satisfying bake. Imagine tender, juicy chicken, perfectly seasoned with aromatic Mexican herbs, nestled among fresh green beans and rich diced tomatoes. All of this is layered with a creamy, tangy sour cream and generously topped with crispy nacho chips and a blanket of melted, gooey cheese. This recipe isn’t just a treat for weekend gatherings; it’s also wonderfully simple and quick enough to whip up on busy weeknights, promising big flavors with minimal effort.

Experience the Best of Tex-Mex Flavors in Your Kitchen
For families, finding a meal that pleases everyone can sometimes feel like a culinary quest. Look no further! This Mexican Chicken Nacho Casserole with vibrant green beans is a guaranteed hit. Parents will appreciate the generous helping of fresh vegetables packed into the hearty filling, while the kids will undoubtedly cheer for the crispy chips crowning their dinner. What child wouldn’t love a meal that features crunchy nacho chips?
These savory, subtly spiced chips add an irresistible texture and a delightful kick, elevating the casserole from a simple dinner to an exciting culinary adventure. The combination of the crisp nachos, the rich, melted cheese, and the creamy sour cream with the savory chicken and green beans simmered in a zesty tomato sauce creates a symphony of flavors and textures in every bite. Serve it alongside fluffy rice and a crisp green salad for a complete and satisfying evening meal that’s both easy to prepare and incredibly flavorful.
I’ve previously shared some fantastic Mexican-inspired casserole recipes on my blog, such as the Mexican nacho casserole with minced meat and salsa and the easy-to-make Mexican minced casserole. However, a dedicated chicken nacho bake was conspicuously missing, despite being a regular in my own kitchen. Today, we’re rectifying that oversight with this fantastic recipe!
Make It Festive: A Spooky Twist for Halloween or Any Celebration
One of the most enjoyable aspects of this Chicken, Beans, and Cheese Nacho Casserole is its versatility, especially when it comes to presentation. While you can certainly use traditional triangular nacho chips for the topping, adding tortilla cut-outs offers a fantastic opportunity to infuse some fun and creativity into your meal. You can easily cut tortilla wraps into various shapes to suit any occasion.
Imagine cutting out charming Easter eggs for a spring celebration, or for Halloween, crafting spooky ghosts, eerie skulls, or even tiny gravestones, as I’ve done here. This playful approach not only makes the dish more visually appealing but also adds an extra layer of excitement, especially for younger diners. It’s a simple yet effective way to transform an ordinary meal into something truly special. And of course, if you’re short on time or prefer a classic look, skipping the decorative shapes altogether is perfectly fine – the casserole will still be incredibly delicious!
Essential Ingredients for Your Delicious Tex-Mex Chicken Nacho Casserole
Crafting this hearty and flavorful Chicken Nacho Casserole requires a selection of fresh and pantry-staple ingredients. Below, you’ll find a detailed breakdown of what you need, along with helpful tips and substitution ideas to make this recipe your own. Precise measurements are available in the comprehensive recipe card located at the bottom of this page.

- Chicken Breast Fillet: We recommend slicing boneless, skinless chicken breast into uniform cubes. Marinating them briefly in the spices before cooking ensures every piece is infused with delicious Mexican flavor.
- **Substitution Tip:** For a different protein, you can easily use ground meat (like lean ground beef or turkey) or even plant-based vegetarian chicken cubes or crumbled tofu for a meatless version.
- Spices and Herbs: A blend of paprika powder, salt, chili powder, and ground nutmeg forms the aromatic backbone of this dish. These spices are easily adjustable, allowing you to tailor the Mexican flavor and heat level to your personal preference. Feel free to add a pinch of cumin, garlic powder, or dried oregano for an even deeper flavor profile.
- Green Beans: Fresh green beans, trimmed and sliced into 1-inch (2 cm) pieces, add a lovely crunch and vibrant color.
- **Freezer-Friendly Option:** Frozen green beans work beautifully as well – just ensure they are thawed and drained before adding.
- **Important Note:** Avoid using canned green beans for this recipe. They tend to be very soft already and can easily become mushy during cooking, compromising the texture of the casserole.
- **Veggie Swap:** Other great vegetable additions or substitutions include corn, black beans (rinsed and drained), or diced bell peppers.
- Diced Tomatoes: Canned diced tomatoes provide a rich, tangy base for the sauce, adding moisture and essential vegetable goodness.
- **Fresh vs. Canned:** While fresh tomatoes can be used, they are generally most flavorful when in season; otherwise, they can be watery. If using peeled whole canned tomatoes, be sure to chop them into smaller cubes for even distribution throughout the sauce.
- Sour Cream: This ingredient is key for the casserole’s delightful creamy texture and tangy notes. As it bakes, the sour cream gently warms and melds with the tomato sauce, creating a rich and inviting flavor.
- **Alternative:** Crème fraîche makes an excellent substitute, offering a similar richness. For a lighter version, consider using Greek yogurt, though its tanginess might be more pronounced.
- Nacho Chips and Tortillas: These form the signature crispy topping. You can choose classic nacho chips or regular tortilla chips, depending on your preference.
- **Flavor Boost:** I personally enjoy using cheese-flavored nacho chips for an extra layer of cheesy goodness, but any plain tortilla chip will work wonderfully. The tortillas are specifically for cutting into decorative shapes if you choose the “Halloween style” option.
- Grated Cheese: A generous amount of grated cheese is essential for that irresistible bubbly, golden-brown topping.
- **Cheese Choices:** Gouda and Gruyère are suggested for their excellent melting properties and rich flavor, but a Mexican blend, sharp cheddar, or Monterey Jack would also be fantastic.
How to Prepare Your Easy Chicken Nacho Bake: Step-by-Step
Creating this flavorful chicken nacho casserole is straightforward and fun! Follow these simple steps to bring this family-favorite meal to your table. You’ll find a comprehensive, printable recipe card with all the precise measurements and details at the very bottom of this blog post.

First, preheat your oven to 430 °F (220 °C) or 390 °F (199 °C) if using a convection oven. Then, in a large skillet, heat a touch of oil over medium heat. Add your finely sliced onion and sauté for about three minutes, or until they become beautifully translucent and fragrant. Next, stir in the minced garlic and continue to stir-fry for just one more minute, allowing its aroma to deepen.

While the aromatics are cooking, toss your cubed chicken breast with the mixed spices (paprika, salt, chili powder, and nutmeg) to ensure every piece is coated. Add the seasoned chicken cubes to the skillet with the onions and garlic, and cook for approximately five minutes, or until they are golden brown and fully cooked through. Once the chicken is done, pour in the diced tomatoes and add the green beans. Stir-fry this vibrant mixture for an additional four minutes, allowing the flavors to meld and the beans to soften slightly.

Once your chicken and vegetable mixture is cooked, carefully transfer the entire contents from the skillet into a suitable casserole dish. Spread it evenly to create a solid base for your nacho casserole. This ensures every bite will have a balanced amount of the hearty filling.

Next, spoon the sour cream evenly over the chicken and vegetable mixture in the casserole dish. Gently spread it out to form a creamy layer. Then, sprinkle a generous amount of grated cheese over the sour cream. This initial layer of cheese will start melting into the creamy topping as it bakes. Place the casserole in your preheated oven and bake for approximately 20 minutes, allowing the flavors to meld and the cheese to get bubbly.
Adding Your Halloween (or Any Celebration) Style
If you’re opting for the fun, decorative touch, here’s how to incorporate your shaped tortillas into the casserole for that special festive flair.

After the initial bake, carefully remove the casserole from the oven. Now it’s time to add the iconic nacho chips and your decorative tortilla shapes. Spread the nacho chips evenly over the creamy chicken and veggie mixture. If you’ve prepared themed cut-outs (like Halloween ghosts or skulls), arrange these artfully on top of the nacho chips. This step adds both visual appeal and an extra layer of crunch.

To complete the topping, sprinkle another generous layer of grated cheese over both the nacho chips and your decorative tortilla pieces. Return the casserole to the oven and continue baking at 430 °F (220 °C) for an additional 20 minutes, or until the cheese is beautifully melted, bubbly, and golden brown, and the nacho chips are perfectly crisp. Serve immediately while hot and enjoy the festive, flavorful experience!

Tips for the Perfect Chicken Nacho Casserole Every Time
Making this chicken nacho casserole is already simple, but these tips will help you achieve perfection and customize it to your liking:
- Achieve Crispy Nachos: To prevent your nacho chips from getting soggy, always add them (and the final cheese layer) in the last 20 minutes of baking. If you’re preparing this dish ahead of time, don’t add the nachos until just before baking.
- Spice It Up (or Down!): The spice blend provided is family-friendly. If you prefer more heat, double the chili powder, or add a pinch of cayenne pepper or a finely diced jalapeño to the chicken mixture. For a milder flavor, reduce the chili powder.
- Vegetable Variations: Feel free to experiment with other vegetables. Diced bell peppers (any color), corn kernels (fresh or frozen), or even a can of rinsed and drained black beans would be excellent additions to the chicken and tomato mixture.
- Cheese, Please! While Gouda and Gruyère are fantastic, don’t hesitate to use your favorite melting cheese. A sharp cheddar, Monterey Jack, or a pre-shredded Mexican blend will also yield delicious results.
- Make Ahead Magic: You can prepare the chicken and vegetable filling up to two days in advance. Cook the chicken and veggies as instructed, then let them cool completely. Store them in a covered casserole dish in the refrigerator. Just before baking, add the sour cream, nachos, and cheese, then bake as directed.
- Serving Suggestions: Beyond rice and a green salad, consider topping individual servings with a dollop of fresh guacamole, extra salsa, a sprinkle of fresh cilantro, or even some pickled jalapeños for an extra kick.
- Storage and Reheating: Once baked with the nacho topping, this casserole is best enjoyed immediately to ensure the chips remain crispy. If you have leftovers, the chips will likely soften. Store any remaining casserole (without the crispy topping) covered in the refrigerator for up to 2 days. Reheat gently in the oven or microwave, and consider adding a fresh handful of nachos and cheese for a renewed crunch.
Frequently Asked Questions About Chicken Nacho Casserole
Here are some common questions you might have about making this delicious Mexican chicken nacho casserole:
Can I use ground beef instead of chicken breast?
Absolutely! Ground beef is a fantastic substitute for chicken breast in this casserole. Simply brown the ground beef with the onions and garlic, drain any excess fat, and then proceed with the recipe as directed, adding the spices and vegetables.
How can I make this casserole vegetarian?
Making this dish vegetarian is easy! Replace the chicken breast with plant-based chicken strips, crumbled tofu, or a can of rinsed and drained black beans. You can also add extra vegetables like corn or bell peppers to enhance the filling.
What if I don’t have fresh green beans?
Frozen green beans are a perfect substitute for fresh. Just make sure to thaw them and drain any excess water before adding them to the skillet. We recommend avoiding canned green beans as their texture tends to be too soft for this dish.
Can I add more vegetables to the casserole?
Definitely! This casserole is highly adaptable. Consider adding diced bell peppers, corn, or even a can of rinsed and drained kidney beans or black beans for extra fiber and nutrients. Sauté them along with the green beans and tomatoes.
What kind of nacho chips work best?
Any sturdy tortilla chip will work well. For an extra flavor boost, I love using cheese-flavored nacho chips. If you’re cutting out shapes for a festive touch, regular tortilla wraps are ideal as they are flexible before baking and crisp up beautifully in the oven.
Is this casserole freezer-friendly?
The chicken and vegetable base can be frozen after cooking and cooling. However, we do not recommend freezing the entire baked casserole with the nacho and sour cream topping, as the texture will suffer upon thawing and reheating. If freezing the base, thaw completely before assembling with fresh toppings and baking.
Did you try this irresistible Mexican Chicken Nacho Casserole? We’d love to see your culinary creation! Tag #byandreajanssen via Instagram! I frequently share the most beautiful photos from my followers, and I can’t wait to see your take on this dish! Loved this recipe? Please take a moment to leave a rating on the recipe card below. Your valuable feedback helps fellow home cooks and supports my work immensely.
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📖 Recipe
RECIPE CARD

Andréa
Pin Recipe
10 minutes
20 minutes
30 minutes
Dinner
Mexican – Tex Mex
4
persons
776
kcal
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Ingredients
Chicken Nacho Casserole
- 2 tablespoons oil
- 1 onion, sliced finely
- 2 cloves garlic, squeezed
- 1 teaspoon paprika powder
- 1 teaspoon salt
- ¼ teaspoon chili powder
- ½ teaspoon ground nutmeg
- 1 pound chicken breast, Cut into 1 x 1-inch cubes (2 x 2 cm)
- 28 ounce diced tomatoes
- ½ pound green beans
- ½ cup sour cream
- ½ pound tortilla chips
- 5 oz. grated cheese, Gouda, Gruyère
Halloween style
- 2 tortilla wraps
All my recipes are written both in Metric (gram / ml) and US Customary (cups / pounds). Here you can select which type of amount you would like to see.
US Customary
Instructions
Chicken Nacho Casserole
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Preheat the oven to 430 °F or 390 °F (if using convection oven).
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Add oil to a skillet and fry the onion about three minutes on low medium, until they’re translucent.2 tablespoons oil, 1 onion
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Add the garlic and bake for another minute.2 cloves garlic
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Mix the paprika powder, salt, chili powder, and ground nutmeg. Sprinkle them evenly on the chicken cubes.1 teaspoon paprika powder, 1 teaspoon salt, ¼ teaspoon chili powder, ½ teaspoon ground nutmeg, 1 pound chicken breast
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Add the seasoned chicken to the skillet and fry until done and golden brown (this usually takes about five minutes, ensuring all sides are lightly seared).
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Add the diced tomatoes and green beans to the pan. Stir-fry for four minutes, allowing the flavors to combine and the vegetables to slightly soften.28 ounce diced tomatoes, ½ pound green beans
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Carefully transfer the entire cooked chicken and vegetable mixture from the pan into your chosen casserole dish, spreading it out evenly.
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Gently spread the sour cream in an even layer over the top of the chicken vegetable mixture in the casserole dish.½ cup sour cream
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Evenly lay the nacho chips over the sour cream layer.½ pound tortilla chips
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Sprinkle a generous amount of grated cheese over the nacho chips.5 oz. grated cheese
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Bake in the preheated oven for 20 minutes, or until the cheese is melted and bubbly and the chips are golden.
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Serve immediately with a side of fluffy rice and a crisp, refreshing salad for a complete meal.
Halloween Style (Optional)
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For a festive touch, take your tortilla wraps and slice them using a cookie cutter into desired shapes (like ghosts or skulls for Halloween), or simply cut them into small triangles.2 tortilla wraps
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Follow steps 8 and 9 above, but incorporate your shaped tortilla pieces by placing them on top of the nacho chips before sprinkling with the grated cheese. Bake in the oven for 20 minutes as instructed until golden and bubbly.
Notes
2. Spices: By blending your own spices – garlic, onion powder, cumin, chili, and paprika powder – you gain complete control over the final flavor intensity. The suggested blend is designed to be family-friendly, but if you desire a spicier kick, feel free to double the amount of chili powder.
3. Substitutions
- Chicken breast: Beyond chicken, this casserole is exceptionally delicious when prepared with ground beef. For a vegetarian alternative, you can successfully use plant-based chicken cubes or crumbled tofu.
- Green beans: Instead of green beans, you can substitute them with a mixture of white and black beans for a different texture and flavor. Corn kernels are also an excellent and popular replacement for green beans in this type of dish.
- Diced tomatoes: While fresh tomatoes can be used, their flavor is typically best when they are in season; otherwise, they may be too watery. Peeled canned tomatoes are a great alternative, but remember to cut them into smaller pieces before adding to ensure they mix well with the sauce.
- Sour cream: If you’re aiming for a lighter version of this casserole, opt for a low-fat sour cream. Alternatively, crème fraîche makes a wonderful substitute, offering a similar rich and creamy consistency.
4. Delicious with a crisp green salad and fluffy rice, which perfectly complements the rich flavors of the casserole.
5. Storage
- Refrigerator: This casserole is ideal for advance preparation. Cook the chicken and vegetables as directed, then allow the mixture to cool quickly. Store it, covered tightly with foil, in the refrigerator for up to two days. Crucially, add the nacho chips, decorative tortilla pieces (if using), and grated cheese topping just before you are ready to bake and serve.
- Once the casserole has been fully baked with the nacho topping, it is not recommended for long-term storage, as the chips will lose their crispness and become soggy.
Nutrition
Carbohydrates: 63g
Protein: 41g
Fat: 41g
Saturated Fat: 13g
Polyunsaturated Fat: 10g
Monounsaturated Fat: 13g
Trans Fat: 0.1g
Cholesterol: 125mg
Sodium: 1286mg
Fiber: 8g
Sugar: 10g
Vitamin A: 1484IU
Vitamin C: 30mg
Iron: 5mg
a dinner recipe with chicken, an easy casserole recipe with chicken
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More Delightful Casserole Recipes to Explore
If you loved this Mexican Chicken Nacho Casserole, you’re in for a treat! Casseroles are the epitome of comfort food – easy to prepare, perfect for feeding a crowd, and packed with flavor. Here are a few more fantastic casserole recipes from my collection that I highly recommend you try:
- Cheesy Sausage and Cauliflower Casserole
- Pork Tenderloin Stuffed with Apple and Pistachios
- Simple Sausage Traybake