1 lg. head lettuce
1/4 c. onion, diced fine
1/4 c. celery, sliced thin
1 (8 oz.) can water chestnuts, sliced
1 pkg. frozen peas (11 oz.), not cooked or thawed
1 c. Weight Watchers mayonnaise
3 pkgs. Sweet & Low
8 tsp. Parmesan cheese
8 tsp. imitation bacon bits

Shred lettuce in large serving bowl. Sprinkle next 3 ingredients over top in order and in layers. Break peas apart and sprinkle all over. Spread on mayonnaise. Sprinkle on Sweet & Low. Sprinkle on Parmesan cheese. Cover tightly and refrigerate 24 hours. Before serving, top with bacon bits. Mix well. Serves 8.