Michaelangelo's is a great pre-Orchestra spot.
Half orders are fairly priced and sized. An escargot appetizer that I shared with another person and 3/4 of the half plate of Lobster Ravioli was enough to fill me up (along with who knows how many slices of the complementary bread..)
Other members of the group ordered calamari, the Bolognese, and the Veal Ravioli. All were pleased with their meal although one of the guys realized he definitely would have been filled up on the half order.
Fairly priced with good food in Little Italy in an intimate setting.