For hungry Red Sox fans deciding on what to eat before or after a game at Fenway Park, one name instantly comes to mind – “The Sausage Guy.”

Since 1996, David Littlefield has run his business of selling pepper and onion-grilled sausages under this self-explanatory moniker. His grilling and steaming cart is situated in the literal shadow of Fenway Park’s Green Monster on Lansdowne Street. Over the years he has been embraced by the community as a well-known figure, appearing in local magazine articles, television commercials and shows such as “The Phantom Gourmet.”

“The Sausage Guy is an integral part of the Fenway experience,” said sophomore computer science major Christopher Sabanty.

One of the Sausage Guy’s more notable promotions was allowing the then-Republican gubernatorial candidate Mitt Romney to use his sausage cart as a literal vehicle for his 2002 campaign. He assigned Romney to serve sausages to customers. A self-proclaimed Democrat, Littlefield also attended a fundraiser for Romney’s Democratic opponent, Shannon O’Brien, to “even things out.”

The Sausage Guy’s most recent, and perhaps most widely seen, media appearance is his cameo in EA Sports’ “MVP Baseball 2004” in which he introduces the game with the famous EA Sports slogan, “EA Sports – it’s in the game.” He follows with a plug, adding, “And I’m the Sausage Guy!” before being cut off.

Littlefield also opened up a Mexican restaurant in South Boston called “Salsa’s” in 1998 and has bought and sold another franchise, “The Three Clovers” pizza restaurant, to increase his business profitability.

The Sausage Guy (or one of his part-time assistant Sausage Guys or Gals) and his cart can be found during most Red Sox home games and on Thursday, Friday and Saturday nights after 9 p.m. by Fenway Park.