The value of a food celebrity’s restaurants may figure into his divorce case—if his estranged wife has her way.

Food fight: The wife of Bobby Flay has filed legal documents to set aside their prenup to give her more of a bite out of her husband’s success. She claims the agreement should not be enforced because she’s the reason he became wildly successful, according to a report from TMZ. Under the terms of their prenup, Flay, who’s worth an estimated $20 million, only has to pay wife Stephanie March $5,000 a month. Flay has a number of cooking shows on Food Network, has written several cookbooks, and owns a bunch of restaurants, including Bar Americain, Bobby Flay Steak, Bobby’s Burger Palace, Gato, and Mesa Grill.

BVR recently served up a webinar, Valuing Restaurants: A Case Study, presented by expert Lynton Kotzin (Kotzin Valuation Partners LLC). Kotzin went through a detailed numbers example of the valuation of a company that owned a group of Subway sandwich shops.