Squash Casserole II

Preheat oven to 350 degrees F (175 degrees C).
Bring a large pot of water to a boil. Add squash and cook until tender but still firm, about 15 minutes; drain.
To the squash add milk, butter, eggs, green onion tops, salt, pepper and sugar; mix well. Transfer to a 9x13 inch casserole dish. Sprinkle with cheese and crushed crackers.
Bake in preheated oven for 30 minutes.