Heat olive oil in a skillet over medium heat.
Sauté onions and bell peppers until soft.
Add shredded chicken and season with cumin, garlic powder, salt, and pepper.
Stir until the chicken is heated through.
Place a tortilla in a separate skillet over medium heat.
Sprinkle half of the cheese on one half of the tortilla.
Spoon some chicken mixture over the cheese.
Fold the tortilla in half and press down gently.
Cook until golden brown, about 2-3 minutes per side.
Remove from skillet and cut into wedges.