I like to use dehydrated Prego. When rehydrating it, i am careful not to add too much boiling water at first as I like it somewhat more thick than when it came out of the jar. Also, rehydrating tends to kill the seasoning, so add some dried oregano, basil, etc. when rehydrating.

For the spaghetti, i use "thin spaghetti." I use a 12 cm alunimum backacking cup with lid and homemade Reflectix pot cozy. I put a half pound of spaghetti in my cup, broken in thirds or fourths so the noodles fit in the cup. Then i fill the cup with boiling water, close the lid, and put the pot in the cozy for 20 minutes. Then I drain any excess water and the spaghetti is done and warm.

Add the rehydrated sauce, extra seasoning, and some parmesan, maybe a little olive oil, and chow down. Minimal clean up.