Add margarine, celery salt and pepper. In large bowl combine noodles, spinach, meat, mushrooms, cottage cheese, pimiento and Cheddar cheese. Spoon into 3 qt. Bake for 30-35 mins. Can use chicken, turkey, ham or tuna.
Top potato slices with zucchini slices.
Sprinkle with onion. Spread soup over top. Layer tater tots on top. Bake 1 hr. Stir in onions and contents of seasoning packet from stuffing mix.