01 -
Rinse the green cabbage and cut around the core to remove it. Place the cabbage core side up in a microwave-safe bowl with a lid, add 0.5 cup water, cover with a paper towel, and microwave on high for 5 minutes. Flip the cabbage, cover again, and microwave for an additional 10 minutes.
02 -
In a medium bowl, stir together cooked rice, lean ground beef, ground pork, onion powder, parsley, salt, garlic powder, and black pepper until well incorporated. Set aside.
03 -
In a separate bowl, combine tomato soup, crushed tomatoes, and sugar. Mix thoroughly and set aside.
04 -
Once cooled, carefully remove 6-8 large cabbage leaves from the head. Pat dry with paper towels. Cut out the thick center stem from each leaf half, creating two halves per leaf.
05 -
Place one cabbage leaf half flat on a surface. Spoon 1.5 tablespoons of the meat mixture near one end. Fold the short end over the filling, tuck in the sides, and roll up tightly. Repeat with remaining leaves and filling.
06 -
Lightly spray the inside of the slow cooker with non-stick spray. Spread 1 cup of the tomato sauce mixture evenly on the bottom. Arrange a single layer of cabbage rolls over the sauce. If necessary, add more sauce on top and layer additional rolls. Pour remaining sauce over the top.
07 -
Cover and cook on low for approximately 6 hours or until the internal temperature of the rolls reaches 165°F (74°C).