Brown the ground beef with chopped onion and garlic in a skillet over medium heat.
In a large crockpot, layer half of the cabbage leaves.
Add the ground beef mixture on top of the cabbage.
Top with rice, diced tomatoes, and remaining cabbage leaves.
Pour beef broth and Worcestershire sauce over the top.
Season with salt and pepper.
Cover and cook on low for 6-8 hours or until cabbage is tender and rice is cooked.
