Mix all of your dry seasonings together. Then sprinkle generously on the chicken breast, reserving some for the onions and peppers.
Sautee the seasoned chicken for 5 minutes on each side. For a quick meal, I prefer to use thin-sliced chicken cutlets because they cook very quickly. Larger chicken breasts will require more cooking time.
Remove chicken breasts from the pan. Add in minced garlic, then the onions, peppers, and any remaining seasoning. Cook until garlic is fragrant and onions are translucent.
Add large tortillas to a clean pan on medium/low heat. Sprinkle a layer of each across the entire tortilla.
To one side, add the chicken, onions, peppers, and jalapenos if you choose to include them.
Fold the tortilla in half and press down with a spaula.
Serve with sour cream, salsa, and avocados on the side.