Chicken Fajita Casserole

4.75 from 4 votes

One of my favorite, family-friendly dinners: Chicken Fajita Casserole is freezer-friendly and delicious.

Prep Time20

Cook Time15

Total Time35

Course: Dinner

Cuisine: Mexican

Keyword: baked fajitas, freezer meal, homemade fajitas

Servings: servings

Calories: 350kcal

2 tablespoon olive or avocado oil divided
1 1/2 pounds boneless skinless chicken breasts, diced
1/2 onion, diced
1 green bell pepper, diced
1 red bell pepper, diced
2 garlic cloves, minced
1 (15-ounce) can corn, drained Sub: 5-6 ears of roasted corn
1/2 cup salsa your choice of heat level
2 tablespoons taco seasoning or try our homemade taco seasoning*
1 1/2 cups shredded cheese mozzarella, cheddar, or Monterey Jack are good choices
8 8-inch, taco-sized tortillas
Optional toppings: guacamole or avocado chunks, salsa, sour cream, diced red onion, and cilantro
*Original recipe was 1 tablespoon taco seasoning but we think it needs more.

Preheat oven to 400° F. Coat a 9x12 casserole dish with cooking spray.
Heat 1 tablespoon oil in a large skillet over medium-high heat. Add in the chicken and saute for 4-6 minutes or until done (no pink inside). Remove to a plate and wipe out the pan if needed.
Add 1 tablespoon oil and let it get hot. Saute the onion and peppers for 4-6 minutes, until soft. Stir in the garlic and cook another 30-60 seconds. Remove from the heat.
Stir in the cooked chicken, corn, salsa, and taco seasoning until well combined.
To each tortilla, add 2 tablespoons of cheese and a generous half cup of the chicken mixture to each one. Roll each one up and place them side by side in the baking dish seam side down.
Spread the remaining cheese over the top of the fajitas.
Bake for 15-20 minutes or until cheese is melted.
Serving suggestion: Top with salsa, sour cream, or plain Greek yogurt, and/or guacamole.

Shortcut: Use already cooked chicken, like from a rotisserie chicken.
We get our meat from ButcherBox. The chicken is organic and curated from small, trusted farms. We highly recommend this service to source DELICIOUS and HEALTHY meat—like uncured bacon, grass-fed beef, and wild salmon—and have used it for years ourselves.