Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
   1 1/4  pounds        round steak -- boneless
   8      ounces        mushrooms -- fresh, sliced
   1      large         onion -- sliced into rings
  10      ounces        onion soup -- condensed
   1      package       stuffing cubes -- seasoned
     1/4  cup           margarine -- melted
   4      ounces        mozzarella cheese -- shredded

Preparation:

Cut beef into 6 serving-size pieces. Layer half of the beef, mushrooms and onion in 3 1/2 to 4-quart slow cooker; repeat layers. Pour soup over ingredients in slow cooker. Cover; cook on low setting for 8 to 10 hours or until beef is tender and no longer pink. Before serving, toss stuffing mix and contents of seasoning packet with melted margarine and 1/2 cup liquid from pot. Place stuffing on top of contents in slow cooker; cover. Increase heat to high setting. Cook 10 minutes or until stuffing is fluffy. Sprinkle with cheese; cover. Cook until cheese is melted.