You're either being awfully stingy on the chili sauce when you make a chili dog - our you're buying some really big cans.
One way to use it up is to make some "Frito Chili Pie" ... the traditional concession stand recipe is a small individual bag (used to be the 10-cent bags back in my younger days) of original sized Frito's - just slit it down the side and top with a little chili sauce (enough to moisten the chips when stirred up) and some diced onions and grated cheddar on top.
You can also make chili burgers ... cook the burger patty on one side - then when you flip it over to cook the other side smear about 1 Tablespoon of chili sauce on the top ... and variants like the chili cheese burger, bacon chili cheese burger, and if you smear the buns with a hickory BBQ sauce and smear the burger with chili sauce, diced onion and cheddar ... you get something similar to one of famous Goff's burgers.
Oh - yeah ... and there is the "Chili Tater"! Make a baked potato (or nuke one) and split open and smush - then add some butter, chili sauce, diced onion, and grated cheddar (a dollop of sour cream and/or guacamole is a bonus - as is some crumbled fried bacon).
You can also add a couple of tablespoons, or more, of hot dog chili sauce to some scrambled eggs for breakfast .... add to some refried beans to make a buttiro ...