01 - In a mixing bowl, combine softened cream cheese, Greek yogurt or sour cream, lemon juice, garlic powder, chopped dill, salt, and freshly ground black pepper. Stir until the mixture is smooth and evenly blended.
02 - Arrange the tortillas on a clean work surface. Using a spatula, evenly coat each tortilla with the prepared dill cream cheese spread, covering to the edges.
03 - Place cucumber slices in a single, even layer over the cream cheese mixture on each tortilla.
04 - Starting at one end, tightly roll each tortilla into a compact log shape.
05 - Wrap the rolled tortillas in plastic wrap and refrigerate for at least 30 minutes to help them firm up for cleaner slicing.
06 - Remove plastic wrap. With a sharp knife, cut each roll crosswise into 6 even pinwheels. Discard uneven end pieces if desired.
07 - Arrange the pinwheels neatly on a platter and serve chilled or at room temperature.