I sliced the chicken breasts into strips and chopped the bell peppers and onions. This helps everything cook evenly and makes assembly quick.
In a skillet, I heated olive oil, then added chicken with chili powder, cumin, oregano, and salt. Once almost done, I tossed in the peppers and onions until tender and slightly caramelized.
I laid a tortilla flat, sprinkled cheese on half, added the chicken-veggie mix, then more cheese. Folded it over and repeated for the remaining tortillas.
In a clean skillet, I cooked each quesadilla over medium heat, 2-3 minutes per side, until golden brown and the cheese melted perfectly.
I let them cool slightly before cutting them into wedges. Added avocado slices, sour cream, and salsa on top for extra flavor.