Balsamic-Glazed Beef Skewers Recipe

In a large bowl, whisk vinaigrette, barbecue sauce and mustard until blended. Reserve 1/4 cup mixture for basting. Add beef to remaining mixture; toss to coat. Alternately thread beef and tomatoes on four metal or soaked wooden skewers. Moisten a paper towel with cooking oil; using long-handled tongs, rub on grill rack to coat lightly. Grill skewers, covered, over medium heat or broil 4 in. from heat 6-9 minutes or until beef reaches desired doneness, turning occasionally and basting frequently with reserved vinaigrette mixture during the last 3 minutes.