in 12in skillet cook sweet pepper, onion, & serrano pepper in hot oil over med-high heat for 3-5min or until tender. remove from heat

lightly coat one side of each tortilla with cooking spray. on uncoated side of 2 tortillas, divide half of cheese. top each half with sweet pepper mix, tomato slices, cilantro, remaining cheese. then remaining tortillas, coated sides up.

cook quesodillas, in same skillet, over med-high heat for 4-5mins per side, until cheese is melted & tortillas are lightly brow. cut & serve with sour cream & lime wedges