Squash Casserole - cooking recipe

Ingredients

1 c. onion
3 c. squash
1 c. Bisquick
1/2 c. Mozzarella cheese
1/2 c. Parmesan cheese
1/2 c. oil
4 eggs

Preparation

Mix altogether.
Grease casserole dish.
Bake 1 hour at 350\u00b0.