01 - Thinly slice the cucumbers and radishes, then combine them in a large salad bowl.
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 well blended.
03 - Pour the yogurt dressing over the sliced vegetables and toss gently until everything is evenly coated.
04 - Taste and adjust the salt and pepper as needed.
05 - Let the salad rest in the refrigerator for 10 minutes to allow the flavors to meld, or serve immediately garnished with extra fresh dill if desired.