This one will take a little bit of preparation. There are a lot of recipes that say that you can make the pasta in the jar in the microwave, but we don’t recommend that. Just boil the pasta beforehand. For example if you’re having pasta for dinner and you have some leftover pasta and sauce, you can store that in the mason jar, for a ready to go lunch. This way you know for sure that your leftover won’t go to waste, and you don’t have to worry about making a whole separate lunch. You’ll be killing two birds with one stone.