Always eat protein after strength training. Actually, I don't put as much emphasis on protein as I do on eating SOMETHING. I think it is very important..not so much for muscle building, but for glycogen restoration. I want my muscles to be nice and recovered by my next workout and they have proven that the faster you eat after your workouts, especially carbs, the faster your muscle glycogen will be replenished, and after a while, your body will "learn" to store the glycogen in more copious amounts.
My motto is: If you are going to train like an athlete, then you must eat like an athlete. That is not to say to pig out or eat large amounts, but you must be smart about when you eat. It really does make a difference when you are training to PERFORM.
Why don't you just eat a good nutrition bar ( if any are good!!
Maybe like Powerbar Protein Plus I think it is called. It has a good mix of carbs and protein. Or a shake as Bronzed Goddess mentioned. I eat shakes like those all the time. I also add Fiber One to mine and they come out fine. It is amazing all the stuff you can add to a shake and it still tastes good. I freeze all my fruit for this purpose (Almost). In my freezer right now I have bananas, mango, grapes, watermelon, cantaloupe, apples and papaya. Sometimes I put 1 chunk of everything in my shake!! I do the yogurt and milk as well and ALSO cottage cheese!!! You can't even tell the CC is in there. Even my non-fitness oriented friends are drinking them!! On the weekends I have been experimenting with adding flax seeds and oat bran. Gotta be careful though, you want just the right mix....not too many carbs and definitly not too much protein. The peanut butter banana ones are EXTRA yummy!!!
Try em!!