Italian Marinated Cauliflower and Broccoli Salad

This is from my MIL. This is a great salad and lasts a long time in the refrigerator. Cooking time is actually marinating in the refrigerator.

• Ready In: 12 hrs 30 mins
• Serves: 12-16
• Yields: 1 large salad

Ingredients

• 2  heads cauliflower, cut into small flowerets
• 1  bunch broccoli, cut into small flowerets
• 1  green pepper, chopped
• 2  stalks celery, chopped
• 1 (8 ounce) can mushrooms, drained and chopped
• 1 (16 ounce) can water chestnuts, drained and sliced
• 1 (16 ounce) can black olives, drained and chopped
• 1 (10 ounce) jar green olives, drained and chopped
• 1 (16 ounce) jar  zesty  Italian dressing
• 1 (2/3ounce) package  Good Seasonings Italian salad dressing mix (mixed with oil and vinegar)
• 1  pint cherry tomatoes

Directions

1. Chop all of the vegetables and place in large bowl. Mix dry dressing mix with oil and vinegar as directions suggest, add prepared Zesty dressing and pour over the vegetables.
2. Marinate covered overnight. Just before serving add the cherry tomatoes.