Aww a person in a tutorial said I'm doing a good job... I think I just really-really needed that.
Anyway, mix of Overcooked and Tetris is a wonderful idea and a great pitch.
For feedback: I love moving stuff around on the grill, both in-game and in RL, but currently the size of the grill and shapes of food rarely give you opportunity to do that. I would definitely experiment with larger grills, so you would get more options to optimise the setup rather than just simply wait until stuff that's on the grill is finished. Also skewers are pretty obnoxious, there's little creativity you can show with these.
Otherwise it's a super cool game with a wholesome idea <3