This Cucumber Tomato Salad with sliced cucumbers, fresh tomatoes, sliced red onions, in a red wine vinaigrette, includes a Mexican twist with the addition of crumbled cotija cheese, Mexican oregano, and chopped cilantro. It makes a truly delicious and refreshing summer salad! Why Is Cucumber Tomato Salad So Popular? In the summertime with barbecues and the hot…