This is a hard one. Spaghetti squash still seems like squash even with sauce on it. One thing you want to do is be sure to cook it well. It is even worse when it is undercooked.
Here is a good recipe for Butternut squash. You put it over gourmet noodles from the store, cheese filled ravioli is best.
Fry, until translucent, in 2 Tbls. butter two onions chopped.
Add 1/2 cup white wine (optional),
2-3 cans chicken broth and
3 pounds cubed butternut squash (stab, microwave to soften, peel, deseed and cube or just chop it up the hard way).
pinch of ginger and nutmeg
Simmer till soft.
Set aside to cool slightly. Then process in the food processor or blender, either all or part of the mixture. You get to decide what your family will like.
Add to the processor 3/4 cream cheese *or* neufchalet cheese and
3/4 cup half and half (I have used regular milk in a pinch).
When and if it needs reheating, warm it slowly just to warm. It will break otherwise and not be pleasant. I like bacon bits or fried bacon as a garnish. It is also very good as a soup with crusty bread.
This one is from Saving Dinner by Leanne Fly. My kids love it and barely know it is squash.