1/2 cup canola oil
1/4 cup soy sauce
3 tablespoons honey
2 tablespoons white vinegar
1/2 teaspoon ground ginger
1/2 teaspoon garlic powder
1-1/2 pounds beef top sirloin steak, cut into 1-inch cubes
1/2 pound whole fresh mushrooms
2 medium onions, cut into wedges
1 medium sweet red pepper, cut into 1-inch pieces
1 medium green pepper, cut into 1-inch pieces
1 medium yellow summer squash, cut into 1/2-inch slices
Hot cooked rice
In a large bowl, combine first six ingredients. Add beef; turn to coat. Cover and refrigerate 8 hours or overnight.
On 12 metal or soaked wooden skewers, alternately thread beef and vegetables; discard marinade. Grill kabobs, covered, over medium heat until beef reaches desired doneness, 10-12 minutes, turning occasionally. Serve with rice.