Preheat oven to 425°F and bake frozen french fries according to package directions.

Meanwhile, boil hot dogs in a large pot of water 5-7 minutes until heated through.

Warm chili in a small saucepan over medium, stirring occasionally.

If desired, lightly toast buns in oven 2-3 minutes.

Set out chili, cheese, onions, ketchup, mustard, and relish in separate bowls.

Let everyone assemble hot dogs; serve with crispy fries.