One of my favorite restaurants in pgh. It is something different than you will get anywhere else. I used to think how good could meatballs be? But after going I realized I was mistaken.
My usual go to is the regular meatball with the parmesan sauce, over top of the seasoned fries. If I am only going for lunch I will stick to the panini or sliders, because the saucy balls is a lot of food. They also have a meatball of the month which I usually like to try in slider form. The best one I have ever had was the Buffalo chicken and I hope they bring it back eventually.
Aside from the good at sienna, there is a rooftop bar which is a great happy hour spot.