Brown the Beef: In a large skillet over medium heat, add the ground beef, breaking it up with a spatula. Cook for about 5–7 minutes until fully browned. Drain any excess fat before proceeding.

Combine Ingredients: In your slow cooker, combine the browned beef with uncooked rice, chopped cabbage, and canned tomatoes. Pour in Worcestershire sauce and season with salt, pepper, and garlic powder. Add your choice of broth and mix well.

Cook: Cover the slow cooker and set it to low heat for 6–8 hours, or high heat for 3–4 hours. Stir halfway through cooking to prevent the rice from settling.

Adjust Consistency: Once cooking time is up, check consistency. If too thick, stir in additional broth or water until desired texture is reached.

Serve: Ladle the soup into bowls, including chunks of cabbage and meat. Garnish with fresh parsley or Parmesan cheese if desired.