The restaurants were closed after it ran out of food, with the group blaming the closures on staffing issues at its suppliers’ factories.
Nando’s said it has seconded 70 staff to the suppliers to help “get things moving again”.
After customer complaints, the chain appears to have got disruptions under control.
According to the BBC, A Nando’s spokesperson said: “The UK food industry has been experiencing disruption across its supply chain in recent weeks due to staff shortages and Covid isolations, and a number of our restaurants have been impacted.
“However, since Monday, a team of our brilliant Nandocas have been supporting our key suppliers onsite – working in partnership to help get things moving again, and this has already had a positive impact on affected restaurants.”