Corned Beef Potato Salad

Ingredients

• 4 c. cubed, cooked potatoes
• 1 (12 oz.) can corned beef, cubed
• 1/2 c. diced dill pickle
• 1/2 c. chopped celery
• 1/4 c. chopped onion
• 1/4 c. salad oil
• 2 Tbsp. wine vinegar
• 1/2 tsp. salt
• 1/4 tsp. garlic powder
• 1/4 tsp. black pepper
• 2/3 c. sour cream
• 2 Tbsp. horseradish
• crisp greens
• cherry tomatoes