Ingredients:

  Amount  Measure       Ingredient -- Preparation Method
--------  ------------  --------------------------------
     1/4  cup           lemon juice
   2      tablespoons   Worcestershire sauce
   3      tablespoons   corn oil
     1/3  cup           soy sauce
   2      tablespoons   yellow mustard
   1      clove         garlic -- minced
   1 1/2  pounds        lean round steak -- boneless
   1      large         green pepper
   4      ounces        fresh mushrooms
   8                    cherry tomatoes
   1      large         onion

Preparation:

Make marinade by combining lemon juice, Worcestershire sauce, oil, soy sauce, mustard, garlic. Cut beef into 1" chunks, then put in marinade. Cover and marinate in refrigerator for 12 hours or more. Cut vegetables into chunks, making at least 8 pieces of each. Remove beef cubes from marinade, reserving marinade. On 4 medium or long skewers, alternate pieces of meat and vegetables. Grill over hot coals, basting occasionally with marinade, for about 15 minutes, turning skewers regularly. (Allow 5 to 10 minutes longer for well done meat. ). Serve hot.