Preheat the oven to 400 degrees. A hot oven ensures even cooking and helps the chicken get that desirable golden color. Take a moment to grab your baking dish.
Spray a 13×9 baking dish with cooking spray. This prevents sticking and keeps the fajitas intact as you bake them.
Cut chicken into strips. Make sure they're similar in size for even cooking. As you slice, think about how tender they’ll be once baked!
Slice the onion and bell pepper. Aim for strips that are about the same width as your chicken to ensure they cook together uniformly.
Mix together chicken, tomatoes, chilies, peppers, and onions in the prepared dish. This colorful mixture is the heart of your fajitas—make sure everything is well combined!
In a small bowl combine the oil and spices. Drizzle the spice mixture over the chicken and toss to coat. This step infuses the chicken and vegetables with flavor, making each bite heavenly.
Bake uncovered for 20 to 25 minutes or until chicken is cooked through and the vegetables are tender. Keep an eye on the oven; you want that golden, crispy edge!
Serve with warmed Tortillas and pineapple chunks. The warmth of the tortillas paired with the juicy pineapple is a match made in heaven!
