* Roast Beef should be thinly sliced and there should be 8 to 10 slices.
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.
