A slice, or two, of heaven
If you are after some pizza in Tokyo, I highly recommend doing lunch at Pizza Slice in Shibuya. For just ￥1000 you get two big slices of pizza and a soft drink. The pizza, in my opinion, is great. The atmosphere is great as is the staff. It is a really good place to eat and ten-minute walk from the JR station. You can see its website here.