Spinach, Strawberry & Feta Salad with Poppy Seed Dressing

Recipe From: Maralee Holiday
My sister-in-law is famous for bringing her Spinach Salad to all events. This is the dressing recipe, but a different salad.

Salad Ingredients:
Bag of Spinach
1/4 red onion (sliced and rinsed)
Strawberries (sliced)
Feta Cheese
Sesame seeds or Walnuts (toasted)

Dressing Ingredients:
2 Tbsp poppyseeds
2 Tbsp white vinegar
1/2 cup mayo (I used low fat)
1/2 cup sugar (I used 1/2 splenda)
1/4 cup milk (I used skim)

Combine and shake and refridgerate.