I did a quick search for dog-friendly/outdoor-dining restaurants in the area, but thanks to the filter, most of the posts were about hot dogs Speeds! (Which I admit, I still have to check out.)
Anywhere besides Tremont 647's Doggie Days that will let a leashed dog sit in our vicinity? Dish, maybe? I've seen a dog leashed to the outdoor patio fences at some of the places on Boylston, but ideally I'd be staying off of Newbury/Boylston.