1 head lettuce, coarsely shredded
1 1/2 c. celery, chopped (3 stalks)
1 c. green pepper, chopped
1/2 c. purple onion, chopped
1 pkg. frozen peas (unthawed)
1 1/2 c. mayonnaise
2 tbsp. grated Parmesan cheese
5 oz. grated Cheddar cheese
4 slices bacon, cooked and crumbled

Layer ingredients in serving dish in order given. Refrigerate overnight.