Preheat oven to 375 degrees.
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 4x8 baking pan.
Top with additional BBQ sauce.
Cover with foil and bake for 45 minutes or until fully cooked.
Remove from oven and place meatloaf on a plate. Let rest for 20 minutes.
Slice meatloaf into ¾ slices.
Butter one side of each piece of bread.
In a large frying pan or large skillet, over medium heat, place a slice of bread buttered side down. Next, place a piece of pepperjack 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.