Chicken Fajita Lettuce Wraps

I found this recipe on the back of a Kraft Cheese bag & it is a South Beach Diet recipe. It's really good!

1 lb diced chicken
1 yellow squash, diced
1 green pepper, diced
1 onion, diced
¼ c. barbecue sauce
½ tsp chili powder
½ tsp cumin
1 can diced green chiles
12 lettuce leaves
1 c shredded cheese

Cook chicken, add vegetables and spices. Cook until all cooked through. Spoon onto lettuce leaves and sprinkle with cheese.