Hot Dog Spaghetti Casserole 1 pound spaghetti 1 jar spaghetti sauce 1 package hot dogs, sliced into rounds American cheese slices or shredded cheese Preheat oven to 350 degrees F. Cook spaghetti as directed on package; rinse and drain. Butter a casserole dish or pan. Layer spaghetti, sauce, hot dog slices, more sauce, and top with cheese slices or shredded cheese. Bake iabout 30 minutes or until casserole is bubbly and the cheese is melted.