1
In a large skillet, cook and stir first spinach, onions, tomatoes, and seasonings until spinach is nice and soft.
2
Remove from heat; stir in cheese.
3
Load up half of each tortilla with spinach mix then fold them over.
4
Spray your skillet with cooking spray, put it back on medium heat and cook tortillas until crispy golden, 1-2 minutes per side.
5
Cut quesadillas in half and serve with sour cream if desired.