Veggie Quesadilla

1/2 cup chopped red bell pepper
1/2 cup chopped zucchini
1/2 cup chopped yellow squash
1/4 cup chopped  onion
1/2 cup chopped mushrooms

1 tablespoon olive oil
6  whole wheat or flour tortillas
1 cup shredded Cheddar cheese or Vegan cheese

1.  In a large nonstick pan, cook red pepper, zucchini, yellow squash, onion, and mushrooms in olive oil over medium heat until  tender. Remove vegetables from pan.
2.  Coat the same pan with cooking spray, and place one tortilla in pan. Sprinkle cheese evenly over tortilla, and layer with the vegetable mixture. Cook until golden on both sides, for approximately 2 to 3 minutes per side. Remove quesadilla from pan, and repeat with remaining ingredients. Cut each quesadilla into  triangles with a pizza cutter. Serve hot. 
Enjoy!