Really interesting mix of genres, and I'd say you executed it really well! It's challenging but really well balanced. In the later stages, the game demands you have very little down time on the stoves in order to keep the pressure up on the enemies, and fumbling the meals a few times is enough to turn the tide against you, but it's not so impossible as to be frustrating. If you decide to expand the game, I think it'd be fun to get upgrades to the number of stoves, their cooking speed, and the number dishes you can stockpile.
Overall really well done!