Lightly spray a 4 quart or larger size crock pot with nonstick cooking spray or use a crock pot liner for easy clean up.

Thinly slice the onions and spread them evenly across the bottom of the slow cooker. Add the frozen meatballs on top.

In a bowl, whisk together the peach preserves, chili sauce, and Worcestershire sauce until well combined. Pour the sauce over the meatballs, ensuring they are evenly coated. Cover and cook on low for 4 hours or high for 2 hours, stirring once halfway through.

Serve as an appetizer with toothpicks or spoon over rice for a delicious meal. Enjoy!