Olomouc has a wide and interesting range of restaurants to offer. These are close to the workshop venue and thus a possible choice for a quick lunch:

5-10 mins walk from the conference venue:

Konvikt Olomouc
Long Story Short
Maison Viet
Potrefená Husa
Svatováclavský Pivovar
Jazz Tibet

10-15 mins walk from the conference venue (near/at the historical city centre):

Hanácká Hospoda
Nepali Restaurant
Moravská Restaurace
Restaurace Drápal
Plan B
Hostinec Moritz

And many more! Many restaurants have outside seating in the autumn, a convenient option for when the sun doesn’t set till past 7:30pm in September. As the city centre is just 10-15 mins walk from the workshop venue, there are a lot of cafes with cakes, coffee and ice-cream.

if you like fresh fries, you can checkthis place out (you can smell the fries when you are still 50 metres away, only take-away though):

faencyfries.cz