Depends on your lifestyle and what your going to do that day.
Lazy couch potato going to an office job -
Fresh fruit juice, muesli, tomato or a banana.
Couple of squash games a week, office job -
Fried egg and ham, bowl of soup macaroni (just chicken stock and spice), fruit juice and coffee.
Squaddie, Mountain Rescue or Wildlife Researcher -
Ladle of baked beans, 2 eggs, 3 sausages, 2 pieces of toast, Mug of tea, and as much fruit, fruit juice or milk as you can get in the camp canteen.