Cut 3-4 pound sirloin tip roast into cubes or leave whole to grill.

1/2 c. oil
1 tbsp. paprika
2 tbsp. sugar
2 tbsp. vinegar
1/4 c. lemon juice
2 tbsp. Worcestershire
Dash of Texas Pete
2-3 tbsp. garlic powder

Put meat in large bowl, pour sauce over meat and leave for several hours. Stir every hour or 2. Put meat on skewers with cherry tomatoes, mushrooms, onions, and green peppers. Grill.