Great art style here! I love your main character design and I laughed out loud when I accidentally served up a plate of "Very creative." Also, your audio mix was amazing, but it did feel a little loud to my seemingly sensitive ears.
The cookbook mechanic is an essential part of the game, but I'd be curious to see how the game would play differently here if it was approached in another way: some ideas that come to mind include making it a bit more integrated into the gameplay so you don't have to change screens when accessing it or maybe making it so the recipes had to be discovered and then the cookbook becomes a short cut in case of repeat requests to encourage more play and exploration.
Thanks for making and sharing your game!