Start with high-confidence greek cooking books, then narrow by subgenre or adjacent topics.
The Official Lore Olympus Cookbook
Rachel Smythe, Genn McMenemy
My Greek Table
Diane Kochilas
The Olive and the Caper
Susanna M Hoffman, Susanna Hoffman
Claudia Roden's Mediterranean
Claudia Roden
Percy Jackson and the Olympians: the Official Cookbook
Jarrett Melendez