How to Make It
Place a medium nonstick skillet coated with cooking spray over medium-high heat until hot. Add mushrooms, zucchini, and bell pepper to pan. Sauté 3 to 5 minutes or until vegetables are tender. Spoon about 3/4 cup vegetable mixture over black bean mixture on each tostada. Top with lettuce, salsa, and cheese.
Cooking Light Superfast Suppers