Heat an outdoor grill to medium-high heat. Add the hot dogs and cook until lightly charred and heated through.
You can toast the buns if you want by turning the grill to low and placing the buns cut side down onto the grill until lightly toasted.
In a medium saucepan heat the chili over medium-high heat until hot.
Add the hot dogs to the buns. Top with chili, shredded cheese, and crushed Frito chips.
If you want to melt the cheese you can bake the hot dogs in the oven at 350 degrees F. on a baking sheet until the cheese has melted. Top with green onions.