Providence for 2 foodies and 1 picky eater
Baccaro, which was just reviewed in detail on the board, might work. They have a few grilled pizzas on the menu. Surely the teenager eats pizza.
Chez Pascal, a board favorite (and mine too), usually has a roasted chicken on the menu.
Siena on Federal Hill also has a few grilled pizza as well as some straight forward pasta and chicken dishes.
If you ditch the picky one and let him/her get room service, you should try North. http://www.foodbynorth.com/. You'll need a car/cab. Nothing basic going on.