To say that I am obsessed with their riccolina dish would not do how much I love it justice. I've ordered that pasta dish the last 7-8 times I've been there, no lie. It's so good! I don't know how they do it with the truffle oil, mushrooms, and arugula, but it is just oh so perfect.
I love the laid-back decor of Osteria; the simplicity of it all really draws me in. Outside of the riccolina, I would have to give a thumbs up to the warm tomato appetizer, the spaghetti and the rigatoni. They are all super delicious. Only one of the pasta dishes have we tried that I would recommend you pass on, though I can't recall it now (I think it was a special).
I also tend to like the bread they serve prior to your meal. Yummy.
The menu is not extensive (as every menu should not be), but the items they have are quite tasty as far as the pastas go. I've only ever sat at the bar and the bartenders at first came off as kind of cold, but then we realized they just weren't chatty. Which is weird when you're a bartender, but oh well. I like this place.