Set in Eau Claire, Wisconsin, Casserole revolves around Clair Wilson, a Godly woman with love to spare. A normal day goes into high gear when Clair learns that a publisher saw her recipe for “Mayonnaise Casserole” and wants to feature her in a new cookbook, The Midwest Chef. Leonard, her grumpy husband, isn’t happy with the situation and their daughter Erica, an abstract artist living in New York City, suddenly shows up with stunning news and a mysterious friend, Penny. Arriving for dinner are the hipster editor, Zachary, and his photographer, Nicholas, who have a hidden agenda for the cookbook. A wild menu is set before them. A food-slinging argument erupts, revealing secrets and setting the stage for Clair’s loving wisdom.