Preheat oven to 350 degrees F. Heat BBQ tray in oven according to package instructions.
2.
Preheat grill to medium heat. Assemble pizzas by spreading equal parts BBQ sauce, BBQ pork, sliced red onions, diced green bell peppers, and cheese on each.
3.
Place pizzas on grill and cook with lid closed for 10 to 12 minutes. Check periodically to ensure even cooking among all pizzas.