Chicken Fajita Casserole

This Chicken Fajita Casserole is a creamy, cheesy twist on classic fajitas! Juicy chicken, sautéed onions, and vibrant bell peppers are baked in a rich, flavorful cheese sauce, creating a comforting and satisfying dish. Top it with sour cream and avocado for extra creaminess, and serve it with a fresh green salad for a well-rounded meal.

With only six simple ingredients, this easy casserole comes together quickly, making it perfect for busy weeknights. Even if you’re starting dinner at 5 PM, you’ll have a delicious meal ready in no time! Most of the cooking time is hands-off, allowing you to relax while the oven does the work. Your whole family will love this hearty, flavor-packed dish!

Chicken Fajita Casserole

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This Chicken Fajita Casserole is a creamy, cheesy twist on classic fajitas! Juicy chicken, sautéed onions, and vibrant bell peppers are baked in a rich, flavorful cheese sauce, creating a comforting and satisfying dish. Top it with sour cream and avocado for extra creaminess, and serve it with a fresh green salad for a well-rounded meal.

Prep Time 20 minutes

Cook Time 1 hour 10 minutes

Total Time 1 hour 30 minutes

Ingredients

• 10 boneless skinless chicken thighs (about 2 pounds)
• 1 red pepper seeded and sliced into small strips
• 1 large onion peeled and sliced into small strips
• 8 oz cream cheese softened
• 8 oz shredded cheddar
• 1.5 tbsp fajita seasoning
• salt & pepper (optional)

Instructions

Step-By-Step Instructions

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Notes

• Make-Ahead: Prepare through step 3. You can refrigerate the casserole for up to a day or two at this point. I prepped it in the morning and then just popped it in the oven before dinner. If it is chilled before the final bake it will take 30-40 minutes to heat through and get a nice bubbly golden topping.
• Seasonings: Depending on whether your fajita seasoning includes salt you may need to adjust. Since you have already cooked the chicken you can taste it, and go from there!

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