In a large skillet, brown the ground beef over medium heat. Make sure to break it up into smaller pieces so it cooks evenly.
Once the beef is browned, add the chopped onion and minced garlic to the skillet. Sauté until the onion becomes translucent and fragrant.
Stir in the chopped cabbage and cook until it starts to wilt, which typically takes a few minutes.
Add in your cooked rice, canned diced tomatoes (including the juice), and the beef broth. Mix everything well.
Season the mixture with salt and pepper according to your taste preferences.
Reduce the heat and let it simmer for 15-20 minutes, allowing the flavors to meld together while keeping everything warm.
Serve hot, and enjoy your scrumptious unstuffed cabbage rolls!