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Executive Food Service Team

Our Staff are hand-selected for their ability to do and be the best. Their dedication to Executive Food Service and talent in the culinary arts are why we succeed. Our team brings passion and excellence to all Executive Food Service events, and a meticulous attention to detail most clients are used to seeing only in the finest restaurants. Rely on our team of on-site caterers in Jacksonville, Florida for a fine culinary arts experience at your next important event!

portrait of Larry Grosshans, Executive Chef and Owner

Larry Grosshans, Founder and Chef

Award-winning Executive Chef Larry Grosshans is a 25-year veteran of the culinary arts and a graduate from the country's most prestigious culinary arts school, The Culinary Institute of America in Hyde Park. This award-winning chef's career has been literally international, in addition to covering every corner of the United States. Chef Grosshans is the successful owner and designer of three restaurants, and the first corporate chef for Starwood Hotels International. In the food service industry, Chef Larry Grosshans has done it all!


(904) 403-9932
Click to email Larry

portrait of olivia Burkhalter Gonzalez, Vice President, Sales and Marketing Director

Olivia Burkhalter Gonzalez,
Vice President, Sales and Marketing Director

Olivia Burkhalter Gonzalez is a professional qualified by 20 years of notable achievements in the culinary arts and hospitality industry. She offers a history of performance excellence in event planning and customer relations. A chef in her own right with expansive culinary knowledge, Gonzalez works with the EFS Catering Team to create custom menus for your special occasion. Her absolute commitment and willingness to go to the extra mile will ensure that your event is a total success. When you are ready to stop worrying and put your trust in the right place, you’ll know who to call.

Member of the Clay County Chamber
Professional Wedding/Event Planner
Certified Professional Food Manager
Gilford Technical Community College-AA (1995)
Olivia Gonzalez
(904) 504-3112
Click to email Olivia

Olivia's Food Photography Blog

Photo of Sean Rush, Senior Operations Director and Master of Events

Sean Rush, Senior Operations Director and Master of Events

Sean Rush is an integral part of the EFS team, having grown up with the company and working with the company since he was a young boy.  Sean instills dedication and thoughtfulness into each and every project that he takes on. As an event manager he is responsible for reviewing every detail of an event from equipment to timelines to staffing.  He has invested personal time, hard work and creative thinking and will go the extra mile every time to ensure your event is a success.  His bright spirit and caring personality make him an excellent leader and an irreplaceable teammate.


(904) 859-9594
Click to email Sean

portrait of therese yanochik, Senior Account Executive

Therese Yanochik, Senior Account Executive

Therese Yanochik brings a contagious smile and more than 20 years of event planning experience to the EFS team. From large and small gala events, weddings, social gatherings and family celebrations, Therese has an exceptional creative touch where great food is always the main attraction.  As a former client of EFS for many years, she knows first-hand how our staff works together to create a memorable dining experience for every occasion. 

Therese is a member of Missionway Church and active with community outreach events.  She enjoys cooking and especially baking sweet treats for her family and friends. 

Therese truly loves people and building long-term relationships with our valued clients.   She will ensure an amazing culinary experience for you and your guests.


(904) 305-9401
Click to email Therese

portrait of kyle morgan, Director of Communications & Assistant Operations Director

Kyle Morgan, Director of Communications & Assistant Operations Director

Kyle has been an integral part of EFS Catering for the past 3 years. He has a background in security management and his attention to detail, sense of urgency and mental fortitude have quickly elevated him to our core management team. Kyle is a hardworking machine. His diligence, troubleshooting capability’s and willingness to go the extra mile have propelled our team towards a level of consistency and organization that is unmatched and appreciated.


(904) 330-9561
Click to email Kyle

portrait of chef edward scheu in the kitchen

Executive Chef Edward Scheu

Our newest Team EFS addition joins us from a wide and varied career that began to our north in Atlanta. With over 30 years of experience in Culinary Arts, Ed’s career and Chef Larry’s actually crossed at that point.

Working under Chef Larry at the iconic Buckhead Diner, Ed formulated and began his true foundation in the Culinary Arts. His passion for food has served him well under a myriad of wildly talented Chef’s having lead him cross country and beyond.  

Once built, he himself became a well known and respected Chef in the Atlanta food scene, having been Executive Chef of several distinguished dining destinations throughout the city. His ability to “unleash” his passion for food is something that won’t be lost on EFS. 

With Chef Edward joining EFS, Chef Larry said, “This is something that Ed and I have been talking about for several years. We’ve always wanted this to come about and I can’t put into words just how great this is for EFS. His talent level is off-the-charts and more importantly, he’s a respected friend and colleague."

With the future bright, it's evident that EFS is in for some pretty special Culinary Treats in the coming years for our clients.


Click to email Chef Edward

Up close shot of Stacy Seslowsky

Stacy Seslowsky, RD, LDN, MSN, Functional Dietitian/Nutritionist

Stacy has practiced as a Registered Dietitian for over 20 years and has a Masters Degree in Human Nutrition and Functional Medicine. She uses individualized and Client-focused care to discover the true road to an individuals healthy balance. 

Stacy is uniquely qualified to understand how genetics, lifestyle, and environmental factors manifest differently in each person. Personalized nutritional goals can be designed to meet each individual’s specific needs. For your wedding day, Stacy will use her expertise and personal touch to help design recipes and menus to fulfill any and all dietary requests.

In its commitment to Health/ Wellness/Nutrition, EFS Catering is proud to be the only Catering company in Florida to have an on Staff Practicing Dietician and Functional Nutritionist.   We believe the future of our industry is a partnership of Creative Culinary Art and the Science of Wellness through proper diet choices and options.   Having someone of Stacy’s position and status in the Nutritional Field is nothing short of amazing for EFS. Ask about our gluten-free, vegetarian, and vegan options. Do you feel unsure? Contact Stacy for guidance. Let’s Let Food Be The Spice of Life!


Credentials and Licensure

Bachelor of Science, Cum Laude: State University of New York, Binghamton

Graduate Classes: New York University

Dietetic Internship to become a Registered Dietitian: New York-Presbyterian/Weill Cornell Medical Center

Masters Degree in Human Nutrition and Functional Medicine: University of Western States

heal from food

Chef Tim in the Kitchen

Executive Sous Chef Timothy Lisewski

Chef Tim joined our team as a transplant from the great state of Michigan where he made his mark in the booming culinary field in the resurging Detroit market. Tim worked his way through many of the top culinary kitchens that area has to offer trying to garner all the culinary knowledge he could, matching his passion for his true love of the Culinary Arts.

His wife and children took advantage of an opportunity to bring their talents to the First Coast where Tim quickly moved into the food scene in Jacksonville, finally finding himself at our door. Chef Larry puts it this way, “We became a better company the day Chef Tim joined our staff. He has a relentless passion for food, the business and everything Culinary.  He’s a beast in the kitchen and has a motor that just doesn’t stop”.  


Click to email Tim