Ingredient:

• 1 package (8 ounces) manicotti shells
• 1 small onion, finely chopped
• 1 tablespoon olive oil
• 2 garlic cloves, minced
• 1 can (28 ounces) crushed tomatoes
• 1/2 cup minced fresh basil or 3 tablespoons dried basil
• 1/3 cup dry red wine or vegetable broth
• 1 tablespoon brown sugar
• 1/2 teaspoon salt
• 1/2 teaspoon pepper
• FILLING:
• 1 carton (15 ounces) reduced-fat ricotta cheese
• 1 medium ripe avocado, peeled and mashed
• 1/2 cup grated Parmesan cheese
• 1/4 teaspoon salt
• 1/4 teaspoon pepper
• 1 cup shredded part-skim mozzarella cheese
• 1 medium ripe avocado, sliced, optional