Here's a map of places to eat near the Faculty of Physics.
Marked in green knife&forks are the University canteens. Some are bigger and can accomodate more people at once. Click on the interactive map link below to see the descriptions and photos.
Interactive Map (google maps link)
Another nice close by option is Jeff's. It's a good american restaurant/grill that's not expensive for Western Europe standards and everybody speaks English. They have a large menu, also with very good burguers with fries for about €12, Buffalo wings for around €10 and steaks for about €28. It's at the edge of the Pole Mokotowskie park nearby. Just be warned that sometimes they can be a bit slow. So if you choose to go there, go early. It's marked in orange to the right of the Faculty.
