Salsa

Fresh Ripe Tomatoes (eg Roma or Beefsteak)
Salad Onions

To taste (one or more):
Garlic Cloves
Green Chillies (Fresh or Pickled, eg Jalepenos)
Fresh Coriander (aka Cilantro)

Finely chop all ingredients and stir together in a bowl. Chill for a few hours & let flavours infuse.

Note: Put the tomatoes in the sun for a few hours before chopping to get a fuller flavour. That's if you live somewhere sunny, of course!