Grilled Asian Beef Kebabs

1 lb sirloin steak, cut into 1 inch cubes
¼ cup black bean sauce
2 tsp sesame oil
1 tbsp rice vinegar
Any skewering veggies you like – I use onions, peppers, and mushrooms, because it's a classic flavor combo with steak, cut into 1 inch chunks
Sesame seeds
Wooden skewers *(or metal ones)

Soak skewers in water for at least ½ an hour (*metal skewers don't require any soaking, and they're cheap). Combine black bean sauce, sesame oil and vinegar. Skewer cubes of meat alternating with your favorite veggies and brush on the sauce.  Preheat BBQ or grill to medium heat. Grill 5-7 minutes turning once. Sprinkle with sesame seeds and grill another 2 minutes until sesame seeds toast.