This chicken fajita casserole is a cozy, all-in-one meal packed with tender chicken, fluffy rice, and bold Tex-Mex flavor. It requires minimal prep and bakes entirely in one dish, making cleanup just as easy as the cooking.

Flavor and Appeal Zesty salsa, melted cheese, and a hint of sweetness from peppers and onions give this casserole its signature Tex-Mex character. Serve it with sour cream, guacamole, fresh cilantro, or pico de gallo.

Ingredient Notes

  • Rice: Long-grain white rice is ideal — it bakes up fluffy and tender. Brown rice or instant rice won’t cook the same way in this casserole.
  • Salsa: Salsa does the heavy seasoning work here, so use one you enjoy. Mild or medium keeps it family-friendly; hot salsa adds more kick. A chunky salsa makes for a heartier result.
  • Chicken: Tenderloins work well as-is. If using chicken breasts, cut them into ¾-inch strips so they cook through in the same time as the rice.
  • Seasoning: Use store-bought fajita seasoning for convenience, or make your own to control salt and heat levels.
  • Peppers and Onions: Frozen bell pepper and onion blends are a great shortcut — they layer in easily and release flavor as they bake. Fresh sliced peppers and onions also work.
  • Cheese: A Mexican cheese blend melts well and gives the casserole a golden finish. Cheddar, Monterey Jack, or pepper jack are all solid alternatives.

Variations Black beans or corn can be added for extra heartiness. Salsa verde offers a brighter, tangier flavor profile. Jalapeño slices on top add heat.

Key Tips

  • Cover tightly with foil while baking to trap steam and ensure the rice cooks through.
  • Cut chicken into even strips so everything finishes cooking at the same time.
  • Check the center of the casserole when testing rice for doneness — it’s the last spot to cook.
  • Let it rest before serving so the rice finishes absorbing liquid and the casserole sets for easier scooping.

Storage Leftovers keep in an airtight container in the refrigerator for up to 4 days, or in the freezer for up to 4 months. Reheat in the microwave or covered in the oven. Add fresh toppings after reheating for best texture.

Basic Recipe Details

  • Prep time: 5 minutes
  • Cook time: 1 hour 5 minutes
  • Total time: 1 hour 10 minutes
  • Servings: 6

Ingredients

  • 2 cups long-grain white rice, uncooked
  • 1⅔ cups chicken broth
  • 1½ cups salsa
  • ¼ teaspoon salt
  • ¼ teaspoon black pepper
  • 1 (14 oz) bag frozen peppers and onions
  • 1½ pounds chicken tenderloins or chicken breasts
  • 1 packet (1 oz) fajita seasoning, or 2 tablespoons homemade fajita seasoning
  • 1 cup shredded cheese (Mexican blend, cheddar, Monterey Jack, or pepper jack)

Source: Chicken Fajita Casserole with Rice and Melted Cheese