Print
clock clock iconcutlery cutlery iconflag flag iconfolder folder iconinstagram instagram iconpinterest pinterest iconfacebook facebook iconprint print iconsquares squares iconheart heart iconheart solid heart solid icon
Cheesy baked fajita chicken casserole garnished with cilantro and lime

Easy Fajita Chicken Casserole


  • Author: Velma
  • Total Time: 45 minutes
  • Yield: 6 servings 1x
  • Diet: Gluten Free

Description

Fajita Chicken Casserole brings the sizzle of fajitas into the oven! It’s loaded with tender chicken, sautéed bell peppers and onions, Tex-Mex spices, and a generous layer of melted cheese—all baked into a creamy, comforting casserole that’s perfect for family dinners or meal prep.


Ingredients

Scale
  • 2 cups cooked chicken breast, shredded or chopped
  • 1 tablespoon olive oil
  • 1 red bell pepper, sliced
  • 1 green bell pepper, sliced
  • 1 yellow onion, sliced
  • 1 teaspoon chili powder
  • 1 teaspoon cumin
  • ½ teaspoon smoked paprika
  • ½ teaspoon garlic powder
  • Salt and pepper, to taste
  • 4 oz cream cheese, softened
  • ½ cup sour cream
  • 1 cup shredded cheddar or Mexican blend cheese (plus more for topping)
  • Optional: ½ cup salsa or canned diced tomatoes with green chiles
  • Optional toppings: chopped cilantro, sliced jalapeños, avocado, lime wedges

Instructions

1. Preheat Oven

  • Preheat to 375°F (190°C).
  • Lightly grease a 9×13-inch casserole dish.

2. Cook Veggies

  • In a skillet, heat olive oil over medium heat.
  • Sauté bell peppers and onions until just softened (about 5–7 minutes). Season with salt, pepper, and half the spices.

3. Mix the Filling

  • In a large bowl, combine cooked chicken, sautéed veggies, cream cheese, sour cream, remaining spices, shredded cheese, and salsa (if using).
  • Mix until evenly combined.

4. Assemble & Bake

  • Spread the mixture evenly in the casserole dish.
  • Top with more shredded cheese.
  • Bake for 25–30 minutes, or until hot and bubbly.

5. Serve

  • Garnish with toppings of choice. Serve with rice, tortillas, or salad.

Notes

  • Low-Carb: Serve over cauliflower rice or in lettuce cups
  • Spicy Kick: Add chopped jalapeños or chipotle peppers
  • Make Ahead: Assemble and refrigerate up to 24 hours before baking
  • Cheese Swap: Use Monterey Jack, pepper jack, or a mix
  • Prep Time: 15 minutes
  • Cook Time: 30 minutes
  • Category: Casserole Recipes
  • Method: Baked
  • Cuisine: American

Nutrition

  • Serving Size: 1 generous scoop
  • Calories: 370 kcal
  • Sugar: 2 g
  • Sodium: 480 mg
  • Fat: 24 g
  • Saturated Fat: 11 g
  • Trans Fat: 0 g
  • Carbohydrates: 8 g
  • Fiber: 2 g
  • Protein: 30 g
  • Cholesterol: 95 mg

Keywords: Fajita Chicken Casserole