Adam B. Greenberg is the founder of Restaurant Zone Inc. and managing member of Potomac Pizza, Bagels ‘n Grinds, and Hunter’s Bar and Grill.
A lifelong Marylander, Adam began his restauranteur career while still in college. In 1992, alongside his siblings, Adam opened Cone Zone, a frozen yogurt and ice cream shop. Two years they expanded with a second location in Potomac, MD, where he later acquired the original Potomac Pizza in June of 1995.
In 1999, he opened his second Potomac Pizza location in the Kentlands, incorporating his ice cream concept as well. Adam continued expanding, purchasing the Potomac Village Deli in 2002, opening Potomac Pizza Traville in 2003, Potomac Pizza Chevy Chase in 2006, Potomac Pizza College Park in 2017, and Potomac Pizza Middle River in 2020.
After over fifteen years mastering New York-style pizza, Adam set out on yet another adventure, this time determined to bring authentic New York bagels to the DC Metro area. Following extensive research into what makes a true NY bagel, he opened his first Bagels ‘n Grinds in Hanover in April 2012.
A fervent believer that the secret to a great New York bagel is in the water, Adam installed a $50,000 state-of-the-art water purification system, enhancing the texture and flavor of the bagels through introducing minerals traditionally found in New York water.
Bagels ‘n Grinds has since expanded, opening in College Park in 2017 and, most recently, in Potomac in April 2025 - connected to Adam’s first Potomac Pizza location. All locations feature a glass-enclosed water purification facility and over 16 varieties of bagels baked fresh daily.
By 2018, having become an expert in fast casual, Adam was ready for a new challenge: fine dining. He opened College Park Grill (CPG), his first higher-end restaurant and bar, in the spring of 2018.
In 2023, a special opportunity arose when longtime Potomac staple Hunter’s Bar and Grill, one of Adam’s late father’s beloved spots, became available. Following the closure of CPG, Adam acquired and took over full operations of Hunter’s in September 2023. He immediately elevating ingredients, introducing modern dishes, and enhancing customer service while preserving the classic “Cheers of Potomac” atmosphere the restaurant has been known for since 1978.
Adam’s success in the restaurant industry stems from his passion for community advocacy, giving back, and employment of the power of food as a means for community building. He regularly gives back to the communities surrounding each of his restaurants - donating pizzas to hospital workers during Covid, hosting decades of fundraisers, contributing hundreds of thousands of dollars in gift cards and in-kind support to schools, essential workers, and non-profits, and even visiting schools to teach children how to make their own pizzas.
None of this would be possible without the incredible team of partners and team members who bring each of these brands to life every day. It takes a strong community to build a brand, and an extraordinary one to build multiple.
Adam’s accomplishments as a business owner would not be possible without the support of his wife, Courtney, and his three children, Amanda, Kyle, and Blake, and his grandson, Hayden.
Chef Tennille "Tee " Middleton came to Restaurant Zone in the summer of 2022. Originally hired as Executive Chef at the College Park Grill and to assist in recipe development, the role quickly evolved into the position of Corporate Concept Chef.
Chef Tee has a resume that expands from cooking at reputable New York City restaurants, education at Johnson and Wales University, to leadership positions with Legal Seafoods, Darden Restaurants, Great American Restaurants, Founding Farmers, and BJ's Restaurant and Brewhouse. Chef Tee also has extensive catering experience and is known within the reality TV scene for their time on the sixth season of Gordon Ramsay’s Hells’ Kitchen.
Outside of work, Chef enjoys watching women’s basketball and spending time with family. Chef has been married for over a decade and has two wonderful daughters, a fur baby, and three terrific godchildren. Legos, horror movies, an antique Corvette and all things Batman round out the rest of the day.
Badara, better known as “Badu”, is the General Manager of Bagels ‘n Grinds Potomac. Born in the West-African nation of Gambia, Badu moved to the States in the ‘80s to attend school in Iowa. Since joining the team in 2017, Badu’s warmth and positivity have made him a beloved member of the community. After spending eight years in College Park, Badu moved to open up the Potomac location in April 2025. When not at Bagels ‘n Grinds, you can find Badu watching soccer, at the gym, or spending time with his wife and daughter.
Badu’s go-to order is the California Chicken Sandwich with turkey bacon.
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Andy has been part of the Restaurant Zone Inc. family since 2010. Starting at Bagels ‘n Grinds’ sister restaurant Potomac Pizza in 2010, Andy worked his way u[ from part-time cashier at our Chevy Chase location to eventually serving as Potomac Pizza in Potomac’s general manager. Recently, Andy became Managing Partner of Potomac Pizza Potomac as well as Bagels ‘n Grinds Potomac. A DMV local through and through, Andy attended The Primary Day School, Landon, and American University. Andy lives in Bethesda with his wife Emily, stepdaughter Bianca, and their dog Bruce.
Andy’s go-to order is a pumpernickel bagel with peanut butter.
Sonia brings over 15 years of restaurant service experience to Bagels ‘n Grinds, where she has been part of our team for a handful of those years. Sonia is from Pasadena, MD and, fun fact, she didn’t try her first bagel until she was 17 years old. When Sonia isn’t working, she loves spending time with her family and being outdoors.
Sonia is a big fan of our housemade Bagel Chips.
A proud Baltimore native, James has been a valuable member of our Bagels ‘n Grinds family for over a decade. Starting at our Hanover location before moving to Bagels ‘n Grinds College Park, James can be found all over the store - in the back baking and prepping the best bagels in town, or front of house assisting guests with their orders.
James’ favorite item at Bagels ‘n Grinds is a Manhattan with provolone cheese.
A College Park native, Rob has been part of the Bagels ‘n Grinds team since 2021. Rob’s constant positivity and kindness make all guests feel welcome, establishing him as a local favorite in the CP and University of Maryland communities. Rob’s College Park renown dates back to his days at the now-closed Bagel Place, where his passion for spreading kindness, bringing the “hype”, and love for bagels cemented him as the “Bagel King of College Park,” a title we’re honored he still proudly bears today.
Rob’s favorite thing to order is an Eggstremely Meaty with cheddar cheese and a hashbrown on the sandwich.
Leslie is from Bladensburg, MD and joined the Bagels ‘n Grinds CP team in 2023. She is a people person through and through and loves to connect with all guests who enter the store. Whether she’s helping someone place an order or just making casual conversation, connecting with people is what she does best.
Leslie’s favorite thing to order is a BLT with avocado and cheddar cheese on a sesame bagel.
Sydney Poretsky grew up in Potomac, MD, where she attended the Primary Day School and Holton-Arms prior to graduating from the University of Maryland with a degree in Communication and Spanish Literature. Sydney participated in many Potomac Pizza Friday school lunches and in-school pizza demos growing up; she even had a birthday party at the old Kentland's Potomac Pizza, showing how far back her love for Potomac Pizza goes. In college, Sydney also spent countless hours studying at Bagels 'n Grinds in College Park.
Sydney has experience working in communications for a vareity of campaigns, organizations, and government entities. She spent two years in North Carolina honing her communication skills while taking graduate courses at Wake Forest University before returning to the DC area. When the pandemic hit, Sydney co-founded Fuel the Fight Winston-Salem where she handled communications and media relations while also coordinating community outreach efforts. In the span of two months, Sydney helped Fuel the Fight raise $34,000 to purchase meals from local restaurants to deliver to almost 3,700 hospital workers around Forsyth County, North Carolina.
Sydney loves everything on the menu.
