Firstly, the Kavarna Slavia, across the street from the National Theater. When he first gave me those directions, I was a little bit afraid that I wouldn't be able to find it, but as soon as I realized that the unmistakable giant gold-roofed building on the river was in fact the Theater, lo and behold, there was the Kavarna Slavia. After a long flight and a day of general harassment in the city from some unsavory male characters, the Kavarna Slavia was a heavenly, air-conditioned retreat complete with friendly old man playing the piano in a lovely, 1920's Paris art deco environment. If you are lucky enough to grab a table by the window, you are rewarded with a stunning view of the river and the castle on the other side.
The next day, as our touring took us up to the castle itself, we continued up the hill on a recommendation to see the Strahov Monastery. After a hot trek up the hill we were able to eat our lunch looking over the city of Prague from above, peering down and trying to name as many monuments as we could distinguish. Above the summer crowds, this spot near the greenery of the hills was incredibly relaxing.
Unknowingly, we saved the best for last in the recommendation of Cafe Louvre (picture above by Kelly Robyn Mann). This pretty pink restaurant was built in 1902 and was apparently favored by Franz Kafka and Albert Einstein. One sip of the hot chocolate and I could see why. Our breakfast was delicious. If I was going to stay in Prague for any amount of time I am quite sure I would eat there every day.
As an unrelated bonus, there is an excellent antique/odds and ends old things store off of Old Town Square called Bric-A-Brac where I found some very cool items completely and refreshingly unrelated to "Praha Drinking Team!" shot glasses.