Fajita Chicken Casserole

A Cheesy, Flavorful Tex-Mex Bake Loaded with Peppers, Onions, and Tender Chicken

Imagine everything you love about sizzling chicken fajitas — smoky spices, colorful peppers, tender chicken — all baked together in a creamy, cheesy casserole. That’s exactly what you get with this Fajita Chicken Casserole. It’s easy, hearty, and totally customizable depending on what you have on hand.

No tortillas required (unless you want them on the side!). Just big flavor, minimal cleanup, and a dish the whole family will ask for again and again.

 Recipe Summary

• Prep Time: 15 minutes

• Cook Time: 30 minutes

• Total Time: 45 minutes

• Servings: 6

• Difficulty: Easy

 Ingredients

For the Casserole Base:

• 2 tablespoons olive oil

• 1 ½ pounds boneless, skinless chicken breasts (or thighs), cut into thin strips

• 1 red bell pepper, sliced

• 1 green bell pepper, sliced

• 1 yellow bell pepper, sliced

• 1 yellow onion, sliced

• 2 teaspoons chili powder

• 1 teaspoon cumin

• 1 teaspoon paprika

• ½ teaspoon garlic powder

• ½ teaspoon onion powder

• Salt & pepper, to taste

• 1 teaspoon lime juice (optional)

For the Creamy Sauce:

• 1 (8 oz) block cream cheese, softened

• ½ cup sour cream

• ½ cup heavy cream or milk

• 1 ½ cups shredded cheddar cheese

• ½ cup Monterey Jack or pepper jack cheese

• Optional: 1 (4 oz) can diced green chiles

Topping:

• ½ cup shredded cheese (cheddar or Mexican blend)

• Optional garnish: chopped cilantro, sliced jalapeños, green onions

 Instructions

Step 1: Preheat & Prep

• Preheat oven to 375°F (190°C).

• Lightly grease a 9×13-inch baking dish.

Step 2: Cook the Chicken & Veggies

1. Heat olive oil in a large skillet over medium-high heat.

2. Add chicken, season with half of the spices, and cook for 4–5 minutes until almost cooked through.

3. Add the sliced peppers and onion, along with remaining spices.

4. Continue cooking for 4–5 minutes until vegetables are tender and chicken is fully cooked.

5. Stir in lime juice, then remove from heat.

Step 3: Make the Creamy Cheese Sauce

1. In a large bowl, mix together:

   • Cream cheese

   • Sour cream

   • Heavy cream or milk

   • Cheddar & Monterey Jack cheese

   • Optional: green chiles

2. Stir until well combined. It’s okay if it’s a little thick — it will melt beautifully in the oven.

Step 4: Combine and Assemble

1. Add the cooked chicken and veggies to the bowl of creamy sauce. Mix well to coat everything.

2. Spread the mixture evenly into the prepared casserole dish.

3. Sprinkle remaining ½ cup shredded cheese over the top.

Step 5: Bake

• Bake uncovered for 25–30 minutes, or until hot and bubbly and the cheese is melted and golden.

Step 6: Garnish & Serve

• Let cool for 5 minutes before serving.

• Top with chopped cilantro, sliced jalapeños, or green onions if desired.

 Serving Suggestions

• Serve with:

  • Warm flour tortillas or tortilla chips

  • Spanish rice or cilantro lime rice

  • Black beans or refried beans

  • Simple green salad or avocado slices

• Drizzle with hot sauce, salsa, or lime crema for extra flavor!

 Recipe Tips & Variations

• Rotisserie chicken shortcut: Use 3 cups of shredded cooked chicken to skip the skillet step.

• Low-carb version: Omit the sour cream and use plain Greek yogurt, or serve with cauliflower rice.

• Make it spicier: Add jalapeños, chipotle powder, or use pepper jack cheese.

• Vegetarian twist: Sub chicken for black beans and roasted sweet potatoes.

• Meal prep friendly: Store in individual containers for grab-and-go lunches.

 Nutrition Information (Per Serving – based on 6 servings)

Nutrition will vary depending on cheese and cream used.

 Why You’ll Love This Recipe

• Combines all the flavors of classic fajitas with the ease of a casserole

• Crowd-pleasing and super customizable

• Creamy, cheesy, and absolutely packed with Tex-Mex flavor

• One dish, easy cleanup

• Great for leftovers and freezer meals