In a small bowl, whisk together the olive oil, red wine vinegar, minced garlic, dried oregano, and Dijon mustard. Season with sea salt and black pepper to taste.

Set the dressing aside while you prepare the salad ingredients.

Slice the cucumber in half lengthwise, remove the seeds, and dice. Chop the green bell pepper into bite-sized pieces and halve the cherry tomatoes.

Thinly slice the red onion and arrange all ingredients on a large platter.

Sprinkle crumbled feta cheese and Kalamata olives over the arranged vegetables.

Drizzle the prepared dressing evenly over the salad, then gently toss to combine.

Before serving, sprinkle with additional dried oregano and fresh mint leaves. Adjust seasoning if needed.

Enjoy your colorful Easy Greek Salad!