4 c. cold mashed potatoes
1/2 c. light cream or milk
2 soda crackers, crushed (about 1/2 c.)
1 sm. onion, finely chopped (1/4 c.)
1 egg, slightly beaten
1/4 tsp. celery salt
1/4 tsp. pepper
1/8 tsp. garlic salt
Tomato wedges & parsley, optional