This achievement is a side Quest related to Velvet. There are several requirements to accomplish this.
Must have cooking Level of 22
Must have completed Eleanor's Side Quest
Must have completed the side quest for Kamoana's Treasure Chest.
Once those are complete, open the cooking menu and cook Crowe's Special Quiche. That should trigger 2 skits. One about not liking Spinach and a second one called"The Special Quiche". Watch the skits then head to Merichio and speak with Orth and Russ(Niko's Dogs) at the Inn and the Achievement will pop after the cut scene