My Dad's Cucumber and Tomato Salad

My dad started whipping this little number up this year. Not sure why he just started it now, but it is a nice little fresh side dish for the summer to use up the bounty of tomatoes and cucumbers that you just don't know what to do with. Here is what I had from my CSA:


That red tomato I actually grew in a pot. I pealed it before adding it to the salad. The yellow ones are from the CSA and that round wierd looking thing is actually a cucumber. Here is the assembled dish:


Cucumber and Tomato Salad
Tomatoes (grape or cherry halved, anything larger, peeled and chopped)
Cucumber, thinly sliced and chopped.
Onion, (I used green, but red would probably be better)
Red wine vinegar
Olive oil
Salt and Pepper

Assemble all ingredients and let sit in fridge for awhile. Enjoy!