Chilled Prawns with Horseradish & Mustard

It's been a little hot around here,
Maybe a cold, easy appetizer or salad is in order this week?
This one is simple to make, and very tasty and yummy.
A bit zippy with the mustard and horseradish, but light and delicious too.

I made this for an appetizer, but we ended eating it on top of our green salads and served our steaks on the side.  My idea of a perfect summer dinner with friends on the patio.

I use the frozen, already cooked and peeled prawns from Costco.  It just makes it so easy.

Serves 6 for an appetizer, or 3-4 as a main dish on a salad
Ingredients

16 oz prawns, thawed and peeled (about 3 cups thawed)
1 Tbsp lemon
1 Tbsp Dijon mustard
1 Tbsp olive oil
1 Tbsp horseradish
1 Tbsp sour cream
1-2 Tbsp red onion, diced
2-3 Tbsp green onions, sliced

Whisk together the lemon, dijon mustard, olive oil, horseradish and sour cream.  Add the prawns, red onions and green onions.  Let chill until ready to serve, but best after marinating for another 1-4 hours.