Runza Casserole

Name: Runza Casserole
Prep time: 20 min
Cook time: 20 min
Total time: 40 min
Cuisine: American
Ingredients: 2 pkgs refrigerated crescent rolls (do not separate rolls); 2 lbs ground beef; 2 tablespoons butter; 4 cups green cabbage, shredded; 1 large yellow onion, finely chopped; 1 1/2 cups Mozzarella cheese, grated; Kosher salt and freshly ground pepper, to taste