Preparation

1 Cut potatoes into 1-1/2-inch pieces. Place in microwave-safe dish; cover with vented plastic wrap. Microwave on HIGH 6 to 8 minutes or until just tender, stirring once. Cool slightly.
2 Combine sauce ingredients in 1-cup glass measure. Microwave on HIGH 1-1/2 minutes, stirring once.
3 Cut squash lengthwise in half. Cut beef steak and squash into 1-1/4-inch pieces. Combine beef, squash, potatoes and 1/3 cup sauce in large bowl; toss. Alternately thread beef and vegetables onto metal skewers.
4 Place kabobs on grid over medium, ash-covered coals. Grill, uncovered, about 10 to 12 minutes for medium rare (145°F) to medium (160°F) doneness, turning occasionally and brushing with remaining sauce during last 5 minutes.

Source: www.beefitswhatsfordinner.com