Heat oven to 400°F. Heat large nonstick skillet over medium heat until hot. Add Ground Beef; cook 8 to 10 minutes, breaking into 3/4-inch crumbles and stirring occasionally. Pour off drippings; season with salt and pepper, as desired.
Stir in salsa, beans and corn; cook and stir 4 to 5 minutes or until thickened and heated through.
Spray baking sheet with cooking spray. Arrange 4 tortillas on baking sheet, overlapping slightly, if necessary. Sprinkle 1/2 of cheese evenly over tortillas. Spoon beef mixture evenly over cheese; top with remaining cheese and tortillas. Spray top tortillas with cooking spray.
Bake in 400°F oven 11 to 13 minutes or until quesadillas are lightly browned and edges are crisp. Cut into wedges to serve.
Nutrition information per serving: 465 Calories; 144 kcal Calories from fat; 16 g Total Fat; 7 g Saturated Fat; 6 g Monounsaturated Fat; 97 mg Cholesterol; 1072 mg Sodium; 42 g Total Carbohydrate; 3.3 g Dietary Fiber; 39 g Protein; 5.4 mg Iron; 8.4 mg Niacin; 0.4 mg Vitamin B6; 3.1 mcg Vitamin B12; 7.6 mg Zinc; 38.6 mcg Selenium; 101.5 mg Choline;