Creamy Fauxtato Salad

Place a steamer insert into a saucepan and add water to just below the bottom of the steamer. Bring water to a boil. Add cauliflower, cover, and steam until tender, about 7 minutes. Remove from heat and immediately rinse with cold water, then set aside to cool.

Combine celery, green pepper, and onion in a large bowl. Add mayonnaise, vinegar, mustard, salt, and pepper and thoroughly mix together. Add cauliflower and eggs; toss lightly until mixed.

Cover and chill for until flavors have melded, 6 to 24 hours.