Cheesy Fajita Chicken Casserole

Preheat the oven to 375°F (190°C) and grease a baking dish with cooking spray.

Slice the chicken breasts into thin strips and season with salt, pepper, and half of the fajita seasoning mix.

Sauté the seasoned chicken in a skillet until cooked through, then set aside.

In the same skillet, sauté sliced bell peppers, onions, and the remaining fajita seasoning mix until tender-crisp.

Combine the cooked chicken, sautéed vegetables, sour cream, half of the cheddar and mozzarella cheeses in a bowl.

Transfer the mixture to the greased baking dish and sprinkle with the remaining cheeses.

Bake in the preheated oven for 20-25 minutes until the cheese is melted and bubbly.