Thanks for the feedback!
Yep! you can queue up the food even if no one's asked for it. Originally we'd even planned for the finished food to be gone if it hasn't been taken for a long time. But I personally made the decision to disable this mechanic in fear of making the game too difficult. But of course, we need more people to test the game to decide whether to go forward with this decision or not.
The opening bgm is sporadic because it was intended for the intro cutscene. We ran out of time to do the intro cutscene, so the intro bgm ended up becoming the title bgm, while the title bgm became the beginning part of the level bgm. Maybe we should've left the title bgm where it is.
As for the sfx, you're right. I hadn't considered how the bgm and sfx will overlap during the game. If the team is willing to continue development after the jam, we might consider another iteration for the sfx.