Lunchtime got a whole lot more interesting when The Whalesbone Sustainable Oyster & Fish Supply started doing its take-away “Brown Bag Lunch.” As the retail shop to its fine dining sister restaurant, The Whalesbone Oyster House, this is the place to go for a hearty fish sandwich. There are three types on offer (selection changes by availability), but we love the smoked tuna with capers and tangy sauce. Hot tip: Tuesdays are “Chowdah Chewsdays,” so you can get a free cup of chowder when you buy a large sandwich. Sandwiches start at $8, lunch is offered Tuesday to Saturday, 11am to 2pm. 504-A Kent St., 613-231-3474.