12 to 16 hot dogs
10 c. potatoes, sliced
6 tbsp. butter
1 1/2 c. onion, chopped
1/4 c. flour
3 tsp. salt
1/4 tsp. pepper
1/4 tsp. paprika
4 c. milk (or more, if needed)
2 c. Swiss cheese, shredded
4 tbsp. parsley, chopped

Melt butter. Add onions; cook until tender. Stir in flour, salt, pepper and paprika. Gradually add milk; cook over medium heat, stirring constantly, until thickened. Remove from heat. Stir in cheese and parsley until cheese is melted. If necessary, return to low heat to melt cheese. Layer 1/2 of potatoes and hot dogs in casserole; add 1/2 of sauce. Repeat. Cover and bake 2 1/2 hours, or until potatoes are tender.