This is a recipe I found on Cooks.com I substituted cream for the milk and used Cheddar
Cheese ( That's all I had in the fridge) And sliced the onion. Pretty yummy. My husband
thought it was potatoes and that we were celebrating something.
BUTTERNUT SQUASH AU GRATIN
2 lbs. butternut squash
1 med. onion, finely chopped (about 1 c.)
1/2 tsp. salt
1/4 tsp. pepper
2 tbsp. butter, melted
3/4 c. milk
3/4 c. finely shredded Swiss cheese
Peel outer skin of squash with peeler or knife. Discard skin. Halve squash lengthwise and cut into thin slices. Place slices in bowl with onion, salt, pepper and melted butter. Toss well. Spoon mixture into buttered 9-inch baking dish. Bake, covered, at 375 degrees for 30 minutes.
Meanwhile, beat eggs, milk and cheese. Remove cover from baking dish and pour cheese mixture evenly over squash. Bake until golden brown, about 20 minutes.
Makes 6 servings.