1Heat oven to 375°F. Spray 15x10x1-inch pan with cooking spray. In large bowl, mix meatball ingredients. Shape into about 36 (1-inch) meatballs. Place in pan.
2Bake 25 to 30 minutes or until meatballs are thoroughly cooked and no longer pink in center.
3Spray 3- to 4-quart slow cooker with cooking spray. Transfer meatballs to slow cooker. In small bowl, mix sauce ingredients. Add sauce to meatballs; stir gently to mix.
4Cover; cook on Low heat setting 2 to 4 hours.