First of all, cut the tomatoes and cucumber, and thinly slice the onion and bell pepper.
Combine tomatoes, cucumber, onion, bell pepper, and olives in a bowl.
Sprinkle crumbled feta cheese over the top.
Now mix olive oil, red wine vinegar, oregano, salt, and Pepper in a separate bowl.
Gently mix all the components of the salad after pouring the dressing on top.
Serve immediately and enjoy the Mediterranean flavors.