All Pandaren recipes are vendor trained however, from The Tillers cooks. Ingredients on your character don't make a difference on trainability, and in the specializations the skill required to train new recipes is independent of the others, in your crafting window you can see the current skill of each specialization (grill, pot, etc.) by mousing over the area on the right side of the category name.
Each of the six specializations have trained recipes that you unlock by increasing your skill in those specializations. I assume you have all of those.
There are other recipes obtained from interactive objects and vendors. Below are links to the Wowhead recipe collection and some guides to the Tillers faction. Friendships dont provide recipes, just rep bonuses and farm toys.
Just sort the recipes by source & skill level and it should be easy to find what you're looking for
Please report any Code of Conduct violations, including:
Threats of violence. We take these seriously and will alert the proper authorities.
Posts containing personal information about other players. This includes physical addresses, e-mail addresses, phone numbers, and inappropriate photos and/or videos.
Harassing or discriminatory language. This will not be tolerated.