01 -
Heat up a big pot of water until it's boiling. Gently take the leaves off the cabbage head and give them a 2-3 minute soak in the hot water to make them soft. Set the softened leaves aside for now.
02 -
Throw the ground meat, rice, onion, egg, Worcestershire sauce, garlic powder, thyme, and some salt and pepper into a bowl. Mix it all up until it's blended well.
03 -
Scoop some of the filling onto the center of a cabbage leaf. Wrap the sides over the mixture, then roll it up snugly to keep it from falling apart.
04 -
Pour a thin layer of tomato sauce at the bottom of a big pot. Line the cabbage rolls up, seam-side facing down. Cover them with the rest of the tomato sauce.
05 -
Put a lid on the pot and let it gently simmer on low for 45 minutes to an hour, until everything is cooked through and the cabbage is soft.
06 -
If you'd like, sprinkle shredded mozzarella over the rolls during the last 10 minutes while they're still cooking for melty cheese on top.