Cucumber and Tomato Salad

This is one of those perfect easy, light and summery foods that I love to make when it's literally 105 degrees outside. Yum!

1 cucumber, peeled and cut into bite-sized pieces
1 tomato, cut into bite-sized pieces (I halved cherry tomatoes)
1/4 to 1/2 small red onion, cut into 1 inch strips
2 tablespoons crumbled feta

Dressing:
3 tablespoons olive oil
1 1/2 tablespoons apple cider vinegar
1/2 teaspoon dry oregano
Salt and pepper to taste
Juice of 1/2 lemon

Whisk together dressing ingredients. Pour over chopped veggies and feta, refrigerate for several hours for the flavors to blend.