Tomato and Feta Cheese Salad with Cucumber
Rinse the tomatoes, remove the core, and thinly slice. Peel and dice the cucumber into bite-sized pieces. Cut the feta cheese into large cubes. Peel and julienne the onion. Rinse and dry the oregano, then remove the leaves.
Mix all the ingredients with the oil. Season to taste with salt and pepper, and serve in bowls.