Bierocks (German Stuffed Rolls with Ground Beef and Cabbage)

Bierocks is quick and easy to prepare. A dough filled with cabbage, hamburger, and onions. I also add green bell pepper and garlic which is optional it could go without.

Ingredients
1 package frozen roll dough
1 1/2 pounds lean ground beef
1-2 cups cabbage
2 tablespoon butter/margarine
1/2 cup chopped onions
1/4 cup green bell pepper
1 teaspoon minced garlic
1 teaspoon salt
1 teaspoon ground black pepper