Step 1

In a small bowl, combine the red onion, olive oil, vinegar, and oregano. Let the onions marinate at room temperature while preparing the rest of the salad.

Step 2

Place the sliced cucumbers into a large salad bowl.

Step 3

Combine the Greek yogurt, lemon juice, garlic, dill, salt, and black pepper. Add to the cucumbers, along with the marinated onions, including the liquid from the onions. Toss everything together really well. Taste for salt and pepper.

Step 4

Enjoy immediately or refrigerate for up to 30 minutes before serving.