1 med. head lettuce, torn
2 stalks celery, finely cut
1 red onion, cut into thin rings
1/2 lb. bacon, fried and crumbled
1/4 c. Parmesan cheese

DRESSING:

1 c. sour cream
2 tbsp. vinegar
1/2 c. sugar
1/2 c. mayonnaise

Layer lettuce, celery and onion. Put dressing over top and let set a while. Then toss. Serve.