I have collected some nearby places where you can have lunch. The numbers just refer to the numbers in the map, no rank in any sense. :) Have a look at the map below, you can find a short description of the places there too..
Budapest University of Technology and Economics (Budapesti Műszaki és Gazdaságtudományi Egyetem)
Restaurant, hungarian cusine, rather heavy dishes
Pub. From its web: International (Hungarian, French, Mexican)-type dishes, house specialties are waiting our dear costumers.
Draught Beer: Dreher, Pilsner Urguell, Tuborg, Paulaner Wheat, Paulaner Pils.
Coffee: Italian coffee. All decaffeinated coffee is also available.
Nevada Pub Budapest
Pub, and restaurant, steaks, pizzas, specialities
Marcello Olasz Kisvendéglő
Coffee house with daily menu, very pleasant terase in nice weather.
University menza, big variety of dishes, salad bar, dish names written in English as well at the counter.
Menza-type restaurant with mainly thick vegetable soups
Hamburger, gyros restaurant with daily menu
Kis Borostyán Mediterrán Vendéglő
restaurant and pizzeria with small dishes
Small pub with daily manu, nice terase
Central Market Hall
Traditional hungarian food in plastic plates on the first floor. The food is good.
Ráday street full of restaurant
All kinds of restaurants for all tastes.