An odd mutant of sports bar and chill lounge, Cosmos might have treated its menu as an afterthought. Not so. You’re likely to stumble upon an artfully prepared rack of lamb, chipotle-spiked shrimp Alfredo, a rave-worthy grilled tuna burger dressed in a zippy balsamic reduction, or a half-pound gourmet cheeseburger prepared to order. Big-screen TVs threaten to ESPN your dinner but never become the distraction you’d expect. Even the late-night deejay seems to realize that it’s all about the ease of transition from food to postprandial cocktail, with no bass bumps in the night. Bar (till 2 a.m.).