These are simple and good and are great on grilled bread (particularly olive bread) or served with a Main course such as hamburger patties or any other grilled meat or fish. You can also dress a pasta with them. I prefer to use tomatoes that are slightly longer than they are round. Whatever shape you use, your tomatoes must be ripe and juicy to make the finished dish sticky, sweet and tasty rather than watery. Try to keep the tomatoes more or less in their shape and not too collapsed. You might like to add some anchovies and capers to the pan.