Skip to main content

Restaurants & Dining

The Guest House restaurant is open!

Breakfast:  Monday-Friday 7-9 a.m. and Weekends 7:30-10 a.m.
Lunch:  Monday-Friday 11 a.m. – 1:30 p.m.
Dinner and Lounge:  Monday-Friday 5:30-8:30 p.m.
Guest House Marketplace:  24/7 with freshly made sandwiches and salads, frozen entrees, snacks, drinks, and more.


The Guest House restaurant is on the ground floor. Large windows make for a pleasant and open dining experience. The restaurant is open to Argonne employees and is available for special events, with seating for 132 people (including the lounge area). In addition, the Guest House operates the 401 Grille in building 401 (Advanced Photon Source).

View all dining options around campus.