From the Super Mario Wiki
Throughout the Paper Mario series, Mario is able to bring various items to be cooked or baked by either Tayce T., Zess T., Saffron, or Dyllis, depending on the game. This is a list of Recipes these chefs can create.
Although every end product is in the lists, the combination possibilities are endless, and as a result, every single recipe has not been included here. One example is the Bland Meal, which has so many combinations, that only two could be listed. Another example is the Shroom Fry, which has some combinations that include Dried Shrooms.
Please note that the combinations that are most successful are those involving the following:
Also keep in mind that some items are named differently in different games. One example is the Egg: it is named "Egg" in Paper Mario, and "Mystic Egg" in Paper Mario: The Thousand-Year Door. For consistency, all instances with the Mystic Egg are labeled "Egg". Recipes that are exactly the same but which have different names, such as Fried Shroom and Shroom Fry, or Cake and Mousse Cake, are listed separately under each name.