Greek Potato Salad

I readily admit to not being very talented in the kitchen. When I try, I really really try, and the results are usually tasty, but not always pretty. When I don't try, it's frozen ravioli baked in the oven with some shredded cheese melted on top. However, I do like good food, and my mother-in-law made this salad when she was here last month. I thought it was a fantastic alternative to the mayo-heavy traditional fare we usually eat in the Midwest. She called this "potato salad" (only she said it in Greek, of course) and it was especially refreshing on a hot day.

Ingredients:

Some boiled potatoes, peeled and quartered
Olive oil
White vinegar
Chopped raw onions (fresh tomato is nice, too)
Salt
Pepper

Start with the potatoes and onions (or tomatoes) in a bowl. Add olive oil and vinegar to coat, toss in a little salt and pepper, and enjoy!