This Healthy Chicken Fajita Casserole is a vibrant, flavorful dish that packs all the bold, zesty flavors of fajitas into a simple, nutritious casserole. Perfect for busy weeknights or meal prepping, this dish brings together lean chicken breast, colorful bell peppers, onions, and a sprinkle of Mexican spices. Just like my mom used to make it.
It’s a lighter version of your favorite fajitas, made with wholesome ingredients that are sure to please the whole family and they are both easy afordable and easy to find.
The casserole is incredibly easy to put together and can be baked in just about 30 minutes, making it a great choice when you’re craving something hearty but don’t want to spend hours in the kitchen. With its combination of protein-rich chicken, fiber-packed veggies, and a simple, flavorful seasoning blend, it’s a one-pan meal that’s not only delicious but also healthy!
Why do I love this recipe?
I love this recipe because it’s the perfect balance of flavor and health. It gives you all the comfort of fajitas, with less guilt, and it’s quick and easy to make!
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Variations on the recipe?
You can swap the chicken for lean ground turkey or even add black beans for a vegetarian twist. You could also switch up the veggies based on what you have on hand—zucchini, corn, or tomatoes all work great!
Serving suggestions?
Serve with a side of brown rice or quinoa for a complete meal, or enjoy it as-is for a low-carb option. Top with a dollop of Greek yogurt or guacamole for added creaminess.
Storage and freezing?
This casserole stores wonderfully in the fridge for up to 3 days, and you can also freeze it for up to 3 months. Just reheat in the oven or microwave when you’re ready to eat!
Healthy Chicken Fajita Casserole
Ingredients
- 2 cups cooked brown rice (from about ¾ cup uncooked)
- 1 ½ pounds boneless skinless chicken breasts, cut into thin strips (about ½-inch thickness)
- 1 large bell pepper sliced
- 1 small onion sliced
- 1 can diced tomatoes 14.5 oz. can (I use fire-roasted), well drained
- 1 tablespoon extra-virgin olive oil
- 1 ½ teaspoons ground cumin
- ½ teaspoon dried oregano
- ½ teaspoon salt
- ¼ teaspoon cayenne pepper (optional)
- ¼ teaspoon black pepper
- ⅛ teaspoon garlic powder
- ⅛ teaspoon onion powder
- 1-2 cups shredded cheddar cheese
Instructions
- Preheat your oven to 400°F and give a 9×13 or 2-quart casserole dish a good spray of cooking spray. Set it aside and get ready for some deliciousness!
- In a large bowl, throw all your ingredients together (except the cheese) and mix it up like you’re creating a masterpiece. If you want to skip a step, just toss everything into the casserole dish and stir it up right there.
- Now, scoop your flavorful mixture into the prepared casserole dish and pop it in the oven. Bake, uncovered, for 20 minutes while you get ready for the cheesy goodness that’s coming next.
- After 20 minutes, it’s time for the magic touch—sprinkle that glorious cheese all over the top and return the dish to the oven for another 10 minutes. The cheese should be bubbling and golden, and the chicken will be cooked through.
- Let your creation rest for 5-10 minutes (if you can wait that long!), then serve and enjoy the cheesy, comforting, mouthwatering goodness you’ve just made!
- Enjoy!