01 -
Preheat a skillet over medium heat and add butter or oil, ensuring the surface is evenly coated.
02 -
Place one flour tortilla flat in the skillet.
03 -
Evenly sprinkle half of the shredded cheese across the surface of the tortilla.
04 -
Top with cooked diced chicken if using, bell peppers, onions, salt, and black pepper.
05 -
Scatter the remaining cheese evenly over the fillings.
06 -
Place the second tortilla on top. Cook for 2 to 3 minutes or until the underside is golden brown.
07 -
Carefully flip the quesadilla and cook the other side for an additional 2 to 3 minutes until golden and cheese is melted.
08 -
Remove from the skillet, slice into wedges, and serve immediately.