Man Fieri visits a food truck making meatballs and marinara sauce from an old household recipe! Watch #DDD, Fridays at 9|8c + sign up for #discoveryplus to stream the entire library therefore far more:. Subscribe to Food Network ▶ Person Fieri takes a cross-country journey to go to some of America's traditional "greasy spoon" dining establishments– restaurants, drive-ins and dives– that have been doing it right for decades. Capture a brand-new episode of #DDD every Friday at…