I won't snivel about the temp, but I'm on foot so I'm looking for something in this neighborhood or nearby vicinity, a very nice resto ($$-$$$) and the national cuisine is optional: I'm looking for something that gets good recommendations for a later evening meal (& open in January on Sunday or Monday) from anyone who dines in the area with some frequency. Recommend a particular plat if that's helpful.
Thanks to everyone's good words, I enjoyed a solo meal at LeMéac last night. I found the portions very generous, the service attentive and the atmosphere social. Its an excellent meal for the price, and the experience left me painfully aware how deprived we are in Boston. (I wouldn't necessarily recommend the acceptable house rillette & duck leg confit combo, but I didnt make good choices nor ask for staff advice.)
Thanks to all!