Our Team

Mathayom Vacharat is the owner and head chef at Mathayom Private Chefs and St. John mat-2Catering and has been a resident of St. John since 1995, moving from Philadelphia after graduating Drexel University with a Business degree. Mat then attended the Graduate Program at the School of Hard Knocks, studying Improvisation.  Opening the business in 2004, his experience as executive chef at premier fine dining restaurants on St. John lends his cuisine a breadth of influences ranging from Asian fusion to progressive American to Caribbean flair.

Mat is committed to sourcing fresh local product as he and his team of talented chefs create custom menus based on seasonal availability. He and his chefs support the Gifft Hill School’s EARTH Program, sourcing much of their local product from the student-run gardens. This approach breeds an innate flexibility when approaching vegetarian, raw food, and other restricted diet menus; as well as creating custom menus for clients interested in an “island to table” approach.

In 2016, Chef Mat and his team began executing Full Moon Dinners at their modest catering venue, changing the theme every month and collaborating with local distributors to create the perfect drink pairings for the multi-course affairs (Full Moon Dinners will resume later this year). Continuing with the theme of fresh and local, they have cultivated and maintained a small garden, drawing product from it whenever possible, and are the first business on St. John to become Reef Responsible certified.

Read how Mathayom has changed the catering world on St. John!


When you call St. John Catering it’s Conor Sieban’s friendly voice that greets you. Biopic_ConorWorking out of our Cruz Bay office Conor is the Office Assistant and Inside Sales Rep for St. John Catering, Mathayom Private Chefs and our newest venture Lucky Chops Lounge.

Hailing from Connecticut Conor’s love affair with St. John started long before he moved to the island in 2016. His family has been frequenting the Virgin Islands for years and owns Marguerite-a-villa on St. Thomas in Cowpet Bay. It was on a family trip in 2013 that 19-year-old Conor caught island fever, but he waited until after completing his bachelor’s from Eastern Connecticut State University (majoring in communications/minoring in Business Information Systems) before taking the plunge and moving to St. John full time.

In addition to our office you can also catch Conor every Friday night at the Dog House where as DJ Fastforward he puts on Cruz’ Bay’s favorite Friday night dance party! You might also see him on any one of St. John’s numerous beaches, paddle boarding along the scenic North Shore, or rooting for his favorite teams (Pittsburgh Steelers and New York Yankees) at one of our local sports bar.


Mary Bourassa is the Office Administrator and Online Content Manager for Mathayom Bio pic_MaryPrivate Chefs, St. John Catering, and Lucky Chops Lounge. She was raised in Colorado where she also went to school earning both her bachelor’s and master’s in journalism and communication. After graduating from the University of Colorado Mary worked in television in both master control for a local Denver station and later their marketing department.

However, for her 27th birthday Mary quit her job and spent the next few years following her passion for traveling. She backpacked through Central America then moved north spending a season in Rocky Mountain National Park where she married her husband Josh. The two then spent several years China where they taught English as a second language before taking time to explore south-east Asia.

In 2015 Mary moved to St. John bringing with her everything learned from a decade of travel and her personal passion for discovering new places and meeting new people.