Preheat oven to 400 degrees F. In a small bowl, add and mix all of the spices for the seasoning. Stir in olive oil and mix until combined.
Place the onions, peppers and chicken in a 9×13” baking dish. Drizzle the spice and oil mix over the top. Using your hands, mix until everything is well coated. Bake for 35-40 minutes, stirring half way.
Serve with tortillas, sour cream, cilantro and lime wedges, as desired.