Barbecued fajita steak
If you have time the day before, marinate the meat overnight, then, when you're ready, light the barbie and get cooking...
Stir all the ingredients together in a medium bowl with some seasoning then put it into the fridge to chill. You could do this the day before. About 20 mins before you are ready to eat, take the salad out and bring it back to room temperature.