1/2 c. salad oil
1/4 c. vinegar
1/4 c. chopped onion
1 tsp. salt
Dash of pepper
2 tsp. Worcestershire sauce
2-3 lb. beef round or sirloin (cut into 1" cubes)
Onions, cut into lg. pieces
Green peppers, cut into lg. pieces

Combine first 6 ingredients. Add meat. Marinate for several hours. Put meat, onions and green peppers on skewers. Cook over charcoal fire until done, basting with marinade while cooking.