I had mono for an extended period of time, I ended up in the emergency room on two occasions because of it. It is indeed not fun at all.

As you pointed out, diet and proper rest can lead to a much speedier recovery, and a good diet really facilitates the latter. The following are my personal opinions and experience, so take that with a grain of salt if you must.

I eat on the run as well, so my suggestions will be geared towards what you can do. But for some basic starts:

Stop caffeine consumption, don't drink soda. Caffeine is a wonderful and extremely effective drug for humans, second probably only to ephedrine. However, its prolonged use can have averse affects on sleep cycles which inhibit a lot of recovery processes.

I'm not saying caffeine is bad by any means, but for now I would get it out of your system. You will feel groggy for the first few days, but after about two weeks it clears your system. You'll notice when you go back to use it though that it is much more potent.

For meals, you want to be eating whole grain products, things that aren't pre-made and then frozen. Stay away from hydrogenated oils and high fructose corn syrup. Milk and lean cuts of meat are also advantageous in white blood cell production and giving muscle strength.

You don't need some body building diet, but cleaning up a bit will help a great deal.

Morning:
- Eggs (quick, simple)
- Shredded wheat, plain Cheerios, oatmeal are all good choices in milk
- Wheat toast with moderate amount of peanut butter

Snack:
- Buy granola
- Piece of fruit
- Steamed veggies

Lunch (The hardest meal):
- Wheat bread sandwich with turkey breast (try not to get sugared meats)
- Wheat bagel
- Carrots

Snack:
- Again, fruits, vegetables

Dinner:
- Lean cut of meat, salmon, chicken, lean ground beef
- Potatoes
- Veggies

Dinner is the most important meal in this case, it's the one you have time for and should prepare well. You'll also save a lot of money if you eat like this even just part of the time.

Another side bit, drink lots of water. Your piss should be clear all the time, not just part of the time. Even if your multivitamin tends to change its color, your should piss clear. Otherwise your not giving your body its most necessary component that isn't air. Coffee, teas, sodas, milks, juices, etc., do not count towards your raw water consumption.

Buy a water bottle and drink it all once or twice a day. If you keep it near your desk you'll find yourself less likely to buy bullshit as well.

As for your sleep, it's hard because my typical advice would be for you to get more physical activity, but that is hard with mono. My other advice would be using chamomile teas after you've gone a couple weeks without caffeine. Chamomile is a moderate sleep agent and relaxant, it does help for some people. Tea though does carry some caffeine with it, so it's up to you whether or not the anti-oxidants of green tea and chamomile outweigh its caffeine content, which is much less than coffee I should point out.

My final thought is about mental perception. It's tough to stay positive when you can do basically nothing, but I strongly believe that mindset can help alleviate the burden. Don't simply count yourself out of 2008, believe that it will go away and I think it helps facilitate the process. Mono has a lot of negative effects on mental faculty due to fatigue, so forcing yourself to think differently I believe is beneficial.

Get your rest, eat well, and get better.