Categories: Beef, Ground beef 
      Yield: 4 servings 
  
      1 c  Catsup                              2 tb Brown sugar 
      1 tb Lemon juice                         1 tb Worcestershire sauce 
      1 ts Prepared mustard                  1/2 ts Onion salt 
    1/8 ts Pepper                              8 oz Cooked roast beef * 
      4 ea Hamburger buns, split           
  
  *    Roast Beef should be thinly sliced and there should be 8 to 10 slices. 
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  ~---- Mix catsup, brown sugar, lemon juice, worcestershire sauce, mustard, 
  onion salt, and pepper in 2-cup glass measure.  Microwave uncovered on high 
  (100%) 1 1/2 minutes; stir.  Microwave to boiling, 1 to 2 minutes. Layer 
  half the beef slices and half the sauce in 1-Qt casserole; repeat. Cover 
  and microwave on high (100%) until hot and bubbly, 1 1/2 to 2 1/2 minutes. 
  Place bottom halves of buns on serving plate. Top with beef and reamining 
  bun halves.  Microwave uncovered on high (100%) until buns are hot, 30 
  seconds to 1 minute.