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Fajita Chicken Casserole – Easy Creamy Homemade Tex-Mex Family Dinner Bake

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This Fajita Chicken Casserole is a creamy, cheesy baked dish loaded with tender chicken, sautéed bell peppers, onions, and fajita seasoning for a flavorful and easy family dinner.

  • Total Time: 50 minutes
  • Yield: 6 servings

Ingredients

Scale

Ingredients

  • 1.5 lbs boneless, skinless chicken breasts
  • 1 red bell pepper, sliced
  • 1 yellow bell pepper, sliced
  • 1 green bell pepper, sliced
  • 1 medium yellow onion, sliced
  • 3 cloves garlic, minced
  • 2 tbsp olive oil, divided
  • 1 packet fajita seasoning (1 oz), divided
  • 1 can cream of chicken soup (10.5 oz)
  • 1/2 cup sour cream
  • 1/4 cup low-sodium chicken broth
  • 2 cups shredded Monterey Jack and cheddar cheese blend, divided
  • 1/2 tsp black pepper
  • 1/4 tsp salt (or to taste)

Instructions

  1. Preheat oven to 375°F and grease a 9×13 baking dish.
  2. Season chicken with half the fajita seasoning, salt, and pepper.
  3. Cook chicken in skillet until done, then shred.
  4. Sauté peppers, onion, and garlic until softened; season with remaining fajita seasoning.
  5. Mix cream of chicken soup, sour cream, chicken broth, and 1 cup cheese.
  6. Stir in chicken and vegetables until combined.
  7. Pour into baking dish and top with remaining cheese.
  8. Cover and bake 20 minutes, then uncover and bake 10–15 minutes until bubbly.
  9. Rest 5 minutes before serving.

Notes

  • Can be assembled up to 24 hours ahead and refrigerated.
  • Freezes well for up to 3 months.
  • Add spinach or extra peppers for more vegetables.
  • Author: lily
  • Prep Time: 15 minutes
  • Cook Time: 35 minutes
  • Category: Main Course
  • Method: Baked
  • Cuisine: Mexican