Pizza Mushrooms

Name: Pizza Mushrooms
Ingredients: 4 Portobello mushrooms, cleaned, stems removed, and gills scraped out; 1 tablespoon extra virgin olive oil; 1 small clove garlic, minced,; 1/3 cup pizza sauce; 1 1/2 cups shredded cheddar cheese; 1/4 cup chopped pepperoni (more to taste); 1/4 cup sliced black olives; 2 tablespoons finely chopped red bell pepper; 3 tablespoons freshly shredded Parmesan cheese; fresh basil leaves, as garnish, optional