Okay, for real, depends on what I'm doing but brekky is usually porridge, unless I'm at altitude when the taste makes me want to vomit, in which case muesli with fruit juice or just water and biccies will do me fine.
Lunch: depends on access to bread. Bread and cheese or ham plus bread and jam. Sometimes a can of rice pudding. Cheese and onion crisps, for no good reason except that I like them. Sometimes oatcakes and cheese. Banana if I have one or can be bothered carrying it.
Evening: on campsite pretty much anything. Backpacking or trekking usually soup to start with for rehydration followed by either pasta or flavoured couscous or occasionally rice with some sort of added protein, usually fish or beans followed by instant custard and cake or chocolate or fruit if it's available.
In UK often carry bottle of wine for training and masochistic reasons.
Snacks: fig rolls, Tunnocks, bananas, dried fruit, Caramel Rockies, if I'm climbing somewhere nasty might also use energy bars on high days.
In Andes favour anything made in the USA or Chile, Peruvian or Ecuadorian chocolate for example is to be avoided like the plague.
Drink - when it's serious I use a dilute solution of PSP22 energy drink, otherwise water. Expresso in morning on campsite, often converted into latte if I have enough milk.
Best meals ever: Picos de Europa, northern Spain. Paella cooked with frozen seafood bought that morning and defrosted en route. Peru - egg and chips for breakfast courtesy of the cook we borrowed from an American guided party when we got back down to base camp.
Worst: too many to mention ranging from a sad energy bar picnic by Malham Tarn (that's outdoor journos for you) while everyone else was cracking open hampers, plus numerous terrifying Peruvia soups on a mountain rescue course in the Blanca.
