I use the tommee tippee pots for meals, but for storing pureed carrots/sweet potato etc I put them in ice cube trays, and once frozen I pop them out into freezer bags and write on the bag what they are and when they have gone bad.
I freeze them in icecube trays then transfer to freezer bags xx
Ideally id like something like an ice cube tray with lids, ive seen those little pots but they have really mixed reviews