Prepare the Vegetables: Start by washing all your fresh vegetables. Dice the cucumber, chop the tomatoes, and thinly slice the red onion and yellow bell pepper.
Combine the Ingredients: In a large bowl, toss together the diced cucumber, chopped tomatoes, thinly sliced onion, and diced yellow pepper.
Add the Olives and Feta: Gently fold in the Kalamata olives and cubed or crumbled feta cheese.
Make the Dressing: In a small bowl, whisk together the olive oil, red wine vinegar, dried oregano, salt, and pepper.
Dress the Salad: Pour the dressing over the salad and toss gently to combine all the flavors.
Serve: Enjoy your Greek salad immediately or let it sit in the fridge for about 30 minutes to allow the flavors to meld.