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Export 8 ingredients for grocery delivery
Step 1
In a 1 1/2- or 2-quart slow cooker, combine mushrooms, onion and sweet pepper. Top with meatballs. In a small bowl, combine tomato sauce, tomato paste, Italian seasoning and garlic. Pour over mixture in cooker.
Step 2
Cover and cook on low-heat setting for 4 to 5 hours or on high-heat setting for 2 to 2 1/2 hours. If no heat setting is available, cook for 3 to 3 1/2 hours.
Step 3
To serve, cook spaghetti according to package directions; drain. Divide spaghetti between serving plates. Top with meatball mixture. If desired, garnish with basil.