Healthy chicken fajita casserole

Prep Time 10 minutes Cook Time 30 minutes Total Time 40 minutes
Serves 6 people     adjust servings

Oven baked chicken fajitas with brown rice and a cheesy topping is an easy recipe that’s great for a hands-off weeknight family dinner.


  • 2 cups cooked brown rice (from about 3/4 cup uncooked)
  • 1 1/2 pounds boneless, skinless chicken breasts cut into thin strips (about 1/2-inch thickness)
  • 1 large bell pepper, sliced
  • 1 small onion, sliced
  • 1 (14.5 oz.) can diced tomatoes (I use fire-roasted), well drained
  • 1 tablespoon extra-virgin olive oil
  • 1 1/2 teaspoons ground cumin
  • 1/2 teaspoon dried oregano
  • 1/2 teaspoon salt
  • 1/4 teaspoon cayenne pepper (optional)
  • 1/4 teaspoon black pepper
  • 1/8 teaspoon garlic powder
  • 1/8 teaspoon onion powder
  • 1-2 cups shredded cheddar cheese
  • shredded lettuce, salsa, sour cream or Greek yogurt, avocado slices, or any of your favorite fajita toppings!


  1. Preheat oven to 400. Spray a 9x13 or 2-quart casserole dish with cooking spray and set aside.

  2. Combine all ingredients, except for the cheese, in a large bowl and stir well to combine (or just mix it together in the casserole dish if you want).

  3. Transfer mixture to casserole dish and bake, uncovered for 20 minutes.

  4. Sprinkle the top with cheese and bake another 10 minutes, until cheese is melted and chicken is cooked through.

Recipe Notes

  1. (from about 3/4 cup uncooked)
  2. cut into thin strips (about 1/2-inch thickness)
  3. (optional)
  4. Recipe Notes

    The rice for this recipe needs to be already cooked, so please plan accordingly.

    I use all cheddar cheese here but you could substitute some Monterey or Pepper Jack cheeses as well.

    You can spice it up with some jalapeño peppers or a pinch of cayenne pepper. And of course, serve with hot sauce!

    It helps to let the casserole sit for 5-10 minutes after it bakes to absorb some of the juices. (If yours has lots of juices, which can happen depending on how much moisture the veggies release, just use a slotted spoon to serve this.)

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