Black Beans Corn Tostada With Mango Salsa

Name: Black Beans Corn Tostada With Mango Salsa
Ingredients: 2 cups wine tomatoes, diced or 3 large tomatoes; 1⁄2 cup unripe mango, peeled and diced; 1⁄4 cup onion, chopped; 1 teaspoon garlic, finely chopped; 2 jalapeno peppers, chopped; 1⁄4 cup mixed color bell pepper; 1⁄8 teaspoon salt; 1 teaspoon ketchup; 2 tablespoons cilantro; 1⁄2 cup black beans; 12 corn tortillas; 1 cup mozzarella cheddar blend cheese, grated; 1 cup mango salsa