A very cozy and charming game, actually! I think I enjoyed it quite a bit. The difficulty curve was quite shallow, it took a while until it got somewhat challenging, but I think that's totally fine for a game jam, where you just want to get a feel for the gameplay. I think some more units that either combine more than two foods, or some that require a mix of foods that other units need could be interesting, where you would have to think about what unit to best use the food for; or some more complicated chains, etc. But it's perfectly fine the way it is!