I don't think this was your intention but this could be a great horror game.
The absence of music during the daytime section made me feel very uncomfortable. Probably because I am scared of 2D Sprites that always look towards the player xD
I got really stressed whenever time ran out because I was afraid I'd get jumpscared or something :O
Besides that your game is well polished :D
The gameplay loop works well. I just don't see what the stamina is for. I was able to fulfill all tasks without having to eat with my son. (I only had to on the first day and when I missed a customer to discard their menu)
P.S.: I liked the secret cake