Make fajita seasoning by mixing chilli powder, cayenne, cumin, black pepper, and salt in a bowl.
Toss chicken with half the seasoning, garlic, lime juice, and salt. Let sit 10 mins.
Sauté in hot oil for 10–12 mins until cooked and crispy. Remove and set aside.
In the same pan, add onions and sliced bell peppers. Sprinkle with remaining seasoning and stir-fry for 3–4 mins on high heat.
Rinse quinoa. Boil with 2 cups water and salt for 15–20 mins until fluffy.
Stir in lime juice and chopped cilantro.
Assemble you bowl! Divide quinoa, chicken, and veggies into containers.
Cool before sealing and reheat before serving.
Enjoy!