Spread each Hot dog bun with 1 t. mayonnaise. Place one piece of American cheese in each bun and then place one hot dog on top of cheese. Spread 2 t. pickle relish on top of each hot dog. Wrap each hot dog combo in foil, crimping the ends and edges.
Oven: Bake for 30 minutes in a 350 degree F. oven.
BBQ: Bake for 20 minutes over low heat turn every 10 minutes.
Campfire: place over low coals, turning frequently for 20 minutes.