UPDATE: The Den Deli has now reopened as Ototo Den.  I have yet to try it out, but stay tuned. If you ask any Denver foodie where they go for sushi, the answer is usually “The Sushi Den.”  I would have to agree.  Owners Toshi and Yasu also own two other restaurants, The Izakaya Den, and Den Deli.  Den Deli is their newest creation, a more casual eatery than their other trendy spots.  This noodle house has incredible Udon,...