Brown ground beef, drain...add onions a cook till tender. Stir in ketchup and Worchester sauce.
Spray a cookie sheet with cooking spray. Arrange crescent rolls in a star shape with tips pointing out, using last piece for the center. Spread meat mixture from center out going about 1/2 to the points. Top each section with 1/2 piece of sliced cheese. Fold tip of roll towards the center.
Place in a preheated 350 degree oven for 15-20 minutes or until golden brown.