Squash Casserole

Ingredients:
- 2 c. cooked spinach
- 1 c. fat-free sour cream
- 1 chopped onion
- Pepperidge Farm dressing mix
- 1 can cream of mushroom soup
- celery salt, garlic powder and black pepper to taste
- 1/4 c. butter
- 1 c. low-fat cheese

Directions:
- Butter or spray with Pam a casserole dish.
- Sprinkle dressing mix to cover bottom of dish.
- Mix ingredients and pour in dish. Sprinkle more crumbs on top.
- Dot with butter and cheese.
- Bake at 350° until done.