Line inside of hot dog buns with mayonnaise and sweet relish. Evenly add mustard. 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.
Do It And How 
Oh, I love a good chili cheese dog and that looks like a easy way to prepare them.
These look so delicious!
farts!
What’s the mayonnaise for? I’m not a fan of it so I was jw!!
How do the onions and relish turn out after being baked? I want to try this recipe…..my husband is leary of the relish anf onion not being raw as he is used to……gonna leave the mayo off too.