Credit: Flying on Jess Fuel
Ingredients:

4 large cucumbers
2 - 3 medium plum tomatoes
8 oz cream cheese, room temperature
5.3 oz plain Greek yogurt
3 T fresh dill, minced
1 T powdered Ranch dressing mix

Instructions:

Wash and partially peel cucumbers for striped look.
Slice into rounds about 1/2 " thick.
Remove seed from tomatoes & slice into small bites.
In a bowl, combine cream cheese, yogurt, dill and 
Ranch powder and mix thoroughly.

Transfer cheese mixture into piping bag (or use a
large baggie with a corner snipped off).

Pipe the cheese mixture onto the cucumber rounds,
then top with the tomato bites.

Enjoy this cool, healthy appetizer!