Low Carb "Faux" Potato Picnic Salad

1 head cauliflower, divided into small florettes
1/2 cup mayonnaise
1/2 cup sour cream
1 tsp coarse ground or spicy brown mustard
1 Tbsp apple cider vinegar
1 Tbsp finely chopped pickles
2 green onions, chopped
2 hard boiled eggs, chopped
salt and pepper to taste
paprika for garnish
(optional: other potato salad favorites, like crispy bacon pieces, radishes, finely chopped celery, etc.)

Bring a large pot of salted water to a boil, add cauliflower florettes, and cook at a gentle rolling boil JUST until KNIFE tender; drain immediately and dump cauliflower out onto paper towels to dry and cool  thoroughly.
While cauliflower is cooling, prepare dressing.
In a small bowl, whisk together the mayonnaise, sour cream, mustard, vinegar, and chopped pickles (may use relish if you have a low-carb variety.)
Put cooled cauliflower in a salad bowl, stir in the dressing mixture, then top with onions, eggs, and add salt and pepper to taste, stir and adjust seasonings.  Add any other ingredients you want, adjust seasonings, then sprinkle with paprika for a pretty finish.
Refrigerate until cold, then serve.
Will serve 4 small salads.