1 lg. pkg. lime Jello
1 1/2 c. boiling water
4 pkgs. cream cheese
1 c. mayonnaise
1 c. sour cream
1/4 c. chopped green onion
2 c. cubed cucumber, peeled
1/4 c. lemon juice
1 1/2 tbsp. horseradish
1 tsp. salt
1 sliced cucumber (for garnish - optional)

Dissolve Jello in boiling water. Place about half the gelatin and half the remaining 8 ingredients in a blender. Cover and blend for 10 seconds. Pour into large bowl. Repeat with remaining ingredients. Stir to combine with first batch. Pour into 8 cup mold. Cover and refrigerate overnight.