Ingredients
1/3 cup canola oil1/4 cup soy sauce2 tablespoons red wine vinegar2 teaspoons garlic powder2 pounds beef top sirloin steak, cut into 1-inch pieces2 medium yellow summer squash, cut into 1/2-inch slices1 large onion, cut into 1-inch chunks1 large green pepper, cut into 1-inch pieces1 large sweet red pepper, cut into 1-inch pieces
Preparation
In a large resealable plastic bag, combine the oil, soy sauce, vinegar and garlic powder; add beef. Seal bag and turn to coat; refrigerate for at least 1 hour.
Drain and discard marinade. On eight metal or soaked wooden skewers, alternately thread beef and vegetables. Grill, covered, over medium-high heat or broil 4-6 in. from the heat for 8-10 minutes or until meat reaches desired doneness, turning occasionally.
