Three-Cheese Manicotti

Ingredients

• 1 tablespoon olive oil
• 1/3 cup sweet onion, finely chopped
• 3 large cloves garlic, peeled and finely chopped
• 1 28-ounce can organic diced tomatoes
• 1 tablespoon tomato paste
• 1/2 teaspoon sugar
• 1/2 teaspoon dried sweet basil
• Freshly ground black pepper
• 2 tablespoons fresh oregano, chopped
• 2 tablespoons Parmigiano Reggiano
• 8 manicotti shells
• 2 ounces cream Havarti cheese, shredded
• 6 ounces fresh Mozzarella
• 3/4 cup part-skim Ricotta