I'm trying to figure out what to eat. I have some tomatoes that are very very ripe, a green pepper, and lots of other stuff but I need to use up those two things. I also have an unopened package of quinoa, which said use by last week....it should still be fine, right? I thought that I would cook up all of the quinoa and then use it for a variety of things this week. Could I cook it and freeze it potentially?