Cover potatoes with water in 2-quart saucepan; bring to a boil over medium-high heat. Reduce heat and simmer 10 minutes or until potatoes are tender. Drain and cool.
Combine potatoes with remaining ingredients in large bowl. Season, if desired, with salt and ground black pepper. Garnish, if desired, with sliced hard cooked eggs and sliced black olives.
*SUBSTITUTION: Use 1 lb. fresh beets. In 2-quart saucepan, add beets and cover with water. Bring to a boil over high heat. Reduce heat and simmer 15 minutes or until beets are tender. Drain and cool; then peel and cut into 1/2-inch pieces.
Cost per recipe*: $4.16
Cost per serving*: $0.52
*Based on average retail prices at national supermarkets.