This easy vegetarian quesadilla is made with mushrooms, cheese, red pepper, garlic, onion and mozzarella. Sautéed veggies and avocado combine for the most flavorful Mexican, plant-based quesadilla exploding with melty cheese! YOU'LL LOVE THIS QUESADILLA If you're looking for a delicious meatless Monday recipe, try this easy Mexican-inspired, cheese loaded, mushroom ...