Hearty Eggplant Casserole

Ingredients

• 2 large eggplants, sliced into 1/4-inch rounds
• 1 tablespoon salt
• 3 tablespoons olive oil
• 1 large onion, chopped
• 3 cloves garlic, minced
• 1 red bell pepper, chopped
• 1 can (14.5 ounces) diced tomatoes, drained
• 1 teaspoon dried oregano
• 1 teaspoon dried basil
• 1/2 teaspoon red pepper flakes
• Salt
• pepper
• 1 cup ricotta cheese
• 1/2 cup grated Parmesan cheese
• 2 cups shredded mozzarella cheese
• 1/4 cup chopped fresh basil, for garnish