Cauliflower Pea Salad

This recipe is from my mom.

1 med. head cauliflower, broken in small pieces
1 10 oz. package frozen peas
2 stalks celery, chopped
3 Tb. onion

Mix all together.

Dressing:
1 c. mayonnaise
3 Tb. milk
2-3 tsp. seasoned salt
pepper

Combine and toss with vegetables. Chill overnight.