1 1b         top sirloin steak, cut into thin strips
1 can       tomato soup (10 ounce or 284 ml size)
2 tblsp     worchestershire sauce
1 tsp        white sugar
1              green pepper cut into strips
1              yellow pepper cut into strips
1              red pepper cut into strips
1/2 lb       sliced mushrooms

In a large lightly oiled skillet, stir-fry steak strips for about 3 minutes (until no pink is visible)
Remove from pan and add remaining ingredients to the skillet, stir and cook over medium-high heat for 5 minutes stirring often.
Add beef again, and cook until hot.
Serve with mashed potatoes, steamed rice, or cooked noodles