The culinary path taken by Korean-Irish chef Robert Cassidy was marked by a radical switch of direction from the get-go. Almost immediately after earning a degree in fire science, the North Park resident ditched his intention of fighting flames in lieu of creating flavors and crafting sushi. The journey led him to become executive chef at the Asian-inspired Cloak & Petal in Little Italy. Cassidy’s cooking skills beckon partly to his split ances…