Italian-Style Tuna Pasta Bake Recipe - Food.com

Ingredients

• 1 large onion
• 2 tablespoons olive oil
• 2 (270 g) canned tuna (drain)
• 2 (800 g) cans chopped tomatoes (do not drain)
• 4 tablespoons tomato paste
• 1 tablespoon Italian herb seasoning
• 1/2 teaspoon oregano
• 1 tablespoon garlic granules
• 2 tablespoons fresh basil (chopped)
• 4 cups pasta shells (cooked al dente)
• 1 1/2 cups grated cheddar cheese
• 1 cup grated mozzarella cheese
• salt and pepper