Slow Cooker Salisbury Steak Meatballs (Frozen Meatballs) is the ultimate comfort food that combines juicy meatballs with a rich, savory gravy. Ideal for busy weeknights or cozy family dinners, this easy recipe requires minimal effort while delivering maximum flavor. Just toss everything into the slow cooker and let it work its magic! Serve these tender meatballs over creamy mashed potatoes, fluffy rice, or even pasta for a satisfying meal that everyone will love. Enjoy leftovers throughout the week, making it perfect for meal prep.