Preheat oven to 350°F.
2. In a bowl, mash avocado well until smooth and creamy. Add onions, tomatoes, corn, oil, cilantro, lemon juice, and salt and pepper to taste; mix well. Spread avocado mixture onto wraps. Sprinkle mozzarella cheese over the avocado mixture. Fold quesadillas in half or keep open-face like a pizza.Bake to melt cheese, about 10 minutes.
3. Slice and serve alongside the roasted tomato soup.