In reply to kevinroet:
For breakfast go with something like bagels with peanut butter and jam or nutella. Or breakfast bars.
Don't bother which lunch, just snack throughout the day to keep energy levels up. Go for trail mix with a good combination of nuts, dried fruit and dark chocolate. Throw in salted peanuts too to help combat loss of salts through sweating. Also, consider electrolytes tablets in a one of your daily water bottles. You can buy a tube of tablets to take up and use when necessary instead of making this up in advance. Obviously snack/energy and protein/recovery bars are an option as well. If you make ration packs in advance for each day then you wont risk carrying too much at the start. You can also easily carry these in a small personal bag whether leading or seconding.
For your evening meals you could take tinned food like chilli, fish, , beans, spaghetti, raviolli etc. Supplement with noodles or boil in the bag rice. The rice cooks easily in a jetboil and you can use any leftover water to wash up with (although its a little starchy).
Oh and tinned fruit is useful. Not only is it something to look forward to because it has a nice taste kick, it provides good sugars as well as a drink. Enjoy during the day or after your evening meal.
And be inventive. You don't need to be boring with your meals. Try out different things before your trip, but consider the fact that you will need to adapt to what you can buy in the US.
Post edited at 14:51