The game is fun once I figured out the loop, but I was a bit confused on the pattern. I think the game would benefit from the kids thinking about what sort of food they want? Perhaps the kids want 3 pieces specifically, and once you place the three, you get a new order and the pieces come back. I think the game will benefit from UI guidance to what the player needs to do; it doesn't need to be some "Simon Says" game, but it can help build a problem-solving game.
I like the pixel art of the sushi, it looks good.