Place roast and dry seasonings in the crockpot.

Pour water and soy sauce over the roast so the seasonings fall into the liquid.

Cook for 5-6 hours on high.

Preheat oven to 350 degrees

Split rolls and brush each side with melted butter and sprinkle with garlic salt

Cook rolls for 3-4 minutes then remove from oven add cheese to one side of each roll and return to oven for an additional 3 minutes, or until cheese is melted and rolls are browned.

Assemble sandwich and serve with a side of au jus.