In a small bowl, combine the cream cheese, mayonnaise and salad dressing mix. Refrigerate for 1 hour.
Just before serving, spread over each slice of rye bread; top each with a cucumber slice. If desired, sprinkle with dill.
Cucumber Sandwiches Tips
How can you prevent cucumber sandwiches from getting soggy?
Some cucumber recipes have you salt the cucumber and let it stand in a colander to draw out the water before preparation. That's not necessary for this recipe because it's just a single slice of cucumber over the cream-cheese spread. The spread prevents the moist cucumber slice from getting the bread soggy.
Can you make cucumber sandwiches ahead of time?
Make-ahead appetizer recipes are so convenient. These cucumber sandwiches can be assembled a few hours in advance to save time right before serving.