On the north side of Baltimore, in a small shopping cemter off ofRt.140, there ia a small restaurant named "China Best". They have sushi buffet, with some cooked dishes as well. Lunch is just various rolls, probably about 30 types. Something like $7 US for all you can eat.
Dinner is a lot more $11 US I think. But they have the other type ( rice ball) then. Very good, and the turnover is about 10 minutes per tray.

Probably about an hour drive from the Getaway site.