Chef Dave Fitzgerald, whose handiwork has been featured at both Downtown Lynn Bistro and Oxford Street Grill, reemerges in East Boston at newcomer Ecco. Bringing new eats to a neighborhood that’s got less than its fair share of fine dining destinations, Ecco combines the posh atmosphere of a martini lounge and an eclectic new American menu for an experience that’s unlike any other in the area. Click through to take a look – dishes like tuna tartare, short-rib shumai and slow-braised short rib speak for themselves.