01 - Thinly slice the cucumbers and radishes using a sharp knife. Place them together in a large salad bowl and set aside.
02 - In a separate mixing bowl, whisk together the Greek yogurt, olive oil, lemon juice, chopped dill, minced garlic (if using), salt, and black pepper until smooth and fully combined.
03 - Pour the dressing over the sliced cucumbers and radishes. Toss gently until all the vegetables are evenly coated with the yogurt mixture.
04 - Taste the salad and adjust the salt and pepper as needed to suit your preference.
05 - Let the salad rest in the refrigerator for about 10 minutes to allow the flavors to meld together. Serve chilled, garnished with additional fresh dill if desired.