Ingredients :

hot dogs
8 hot dog buns
1 can of chili
1/2 an onion, diced
cheddar cheese
mayonnaise
mustard
sweet relish

Directions :

Line inside of hot dog buns with mayonnaise and sweet relish. (I know this sounds crazy, but the mayo did something magical to the bread! It stayed super soft and yummy!)
Evenly add mustard (I added ketchup too).
Fill with hot dogs and squish into a 13×9″ baking pan.
Top hot dogs with chili, cheese, and diced onion.
Cover with aluminum foil and bake at 350F for 45 minutes.
Carefully remove from the pan with a spatula.