If you're sick of the offerings from Pizza Express try this place. The pizza's are very good although I haven't tried the pasta dishes. It's owned by the same people who run the Eriki Indian restaurant on Finchley Road, they have an Eriki special pizza on the menu, it's basically a Tandoori chicken pizza and is actually very nice.
The decor is a bit basic but the staff/chef are friendly and it's a much better bet than the Pizza Express in my opinion.
A fresh new Pizza, Pasta and Grill with some Organic options. Authentic Italian home made products.