DRESSING:

1 1/2 c. mayonnaise
1/3 c. sugar
1/3 c. finely chopped onion
1/3 c. Parmesan cheese
1 bunch broccoli
1/2 head cauliflower
1/2 lb. cooked bacon, crumbled

Mix first 4 ingredients together and chill for 2 hours. Add vegetables and bacon to dressing and mix well. Refrigerate until served.