Shape the meat by tablespoons into 24 balls.
Place in a glass bowl or plastic bag.
Mix the remaining ingredients together and pour over the meatballs and mushrooms.
Cover and refrigerate for at least 8 hours, turning the meatballs and mushrooms occasionally.
On each of 4 12-inch metal skewers, alternate 6 meatballs with 6 mushrooms.
Set oven control to broil and/or 550.
Broil kabobs 4-inches from the heat to the desired doneness, about 15 to 20 minutes.
Brush occasionally with the remaining marinade and gently push with a fork to turn.