There are simple rules, but complex gameplay.
In fact you will have to stick to real life rules in the food experience.
Adding Ketchup and Mustard to your Hamburguer will make it tastier, but doing that to a Cake will decrease it´s value (you can take out advsersaries attacks on your foods bay using a 'extra' that gives it better taste, or vice versa, you can make a enhanced food became worse). If you can´t decide if a 'extra' is good or not (like putting shoyu or creamcheese in your hamburguer), all players will vote if a 'extra' is good or bad for a food.