Sounds a bit out there, but has a really unique taste to it.
1 box Spaghetti noodles
1 cup Mayonaise(I use Blue Plate)
1 pinch of sugar
As much cheese as desired - don't over do it will take from the flavor, I use sight to tell me when I've got enough usually enough just to mix thoroughly and have a good mixture)
1 can Cream of Mushroom soup(Can use cream of chicken or celery)
1 medium onion, chopped finely
salt & pepper to taste
Preheat oven 400 degrees.
Cook spaghetti noodles until done, drain and place in large mixing bowl. Add and mix well the remaining ingredients. Cook for approximately 1 hour while stirring every 15 minutes. At the end of the hour allow the top to become a light golden brown then remove from oven, let cool and serve.