In a medium bowl, mix everything together except bread crumbs.
Add bread crumbs and mix well.
Form into an oval loaf and place in a 4×8 baking pan.
Top with additional BBQ sauce.
Cover with foil and place on the grill for 45 minutes with the led covered or until fully cooked.
Remove place meatloaf on a plate. Let rest for 20 minutes.
Slice meatloaf into slices
Butter one side of each piece of bread.
On the grill place a slice of bread buttered side down
Place a piece of cheese followed by slices of meatloaf to cover the bread. Top with another slice of cheese and then the other piece of bread.
Cook until bread is toasted, flip over and cook the other side.