Press down on the fat part of the chicken breast (or bash with a flat bottomed object) in order to even out the thickness of the whole breast which facilitates more even cooking.
Heat he olive oil in a frying pan, and when hot, pan fry the chicken breasts on each side until just turning golden but not cooked through. Remove and set aside in a medium size roasting tray.
Mix all the salsa ingredients together and spread over the chicken breasts and in the tray.
Roast for 20 - 25 minutes until cooked through.
Notes
This would be lovely served with crusty bread, rice or cous cous to mop up all the juices.Store any leftovers in the fridge.