I have taken this to potlucks in the past and people really love it! My family loves it too. Not the stuff of 5-star restaurants, but for my family this is comfort food! Take care with the type of hot dogs you buy because some of the really inexpensive ones have so much water in them it will make the sauce very thin.
Place hot dogs in a slow cooker. Mix chili, Cheddar cheese soup, ketchup, and chopped green chilies in a bowl and pour over hot dogs. Cover cooker and set to Low; cook 4 to 5 hours (can cook longer if desired).
Serve hot dogs on buns topped with a large spoonful of chili, 1 teaspoon of chopped onion, 1 tablespoon of shredded Cheddar cheese, and about 2 tablespoons crushed corn chips.
Per Serving: 385 calories; protein 14.7g; carbohydrates 33.1g; fat 21.4g; cholesterol 39.4mg; sodium 1171.6mg.