Pasta works if you cook it at home and dehydrate. It still takes a while to rehydrate, but at least this way it will be al dente instead of threatening to break a tooth. Very fine pasta (like angel hair, or anything in which the directions say cook 7 minutes or less) will work with a really warm cozy and sitting 20 or more minutes.

Couscous is a form of pasta which doesn't require all that bother--just add your hot water and let sit only a few minutes. I now use it instead of pasta. It is available in a whole wheat version. I must admit, though, that to my grandkids it can't substitute for spaghetti! On the other hand, couscous, unlike spaghetti or angel hair pasta, won't poke a hole in your freezer bag!