Food stalls in the Olympic Park ran out of supplies on Wednesday and some hungry sports fans were turned away during the lunchtime rush.
Tea and coffee shops around the basketball and handball arenas ran out of milk and a Spanish-themed concession ran out of tapas platters and posted a member of staff to turn people away.
A Mexican-themed stall was forced to abandon half of its menu because it ran out of tacos, jalapeno peppers, red peppers, chicken and cheese.
A noodle shop was clean out of chicken, prawns, spring onions and coriander, while the Wok Shop only had one dish left on its menu by 1.30pm.
Tea and coffee was only being served with small UHT milk pods and cappuccinos and lattes were unavailable after milk supplies dried by 1pm to the embarrassment of staff having to tell customers.
"We were talking to one of the other stall holders earlier and they had to simply start again and write a new menu with what they had got," said one caterer. "I don't think anyone has any fresh milk," a catering assistant at the tapas stall said. "We are down to our last half carton. It has been a problem."
The problems come despite the Games organisers promising to react to problems over the opening weekend of the Games when shortages of food were reported by Olympic football fans at Wembley stadium and Old Trafford.
Before the Games, organisers had trumpeted their plans for catering on the Olympic park. "It is crucial [the spectators'] expectations for their 'once in a lifetime' experience are exceeded, both through great sporting action and also the highest quality food available at affordable prices," said a "food vision" document prepared by the London organising committee.
The food contract for the northern area of the park was let to Amadeus, a division of the NEC group, which runs the National Exhibition Centre in Birmingham.
"We will work very hard with the catering team to make sure there are sufficient supplies," said a spokesman for the London 2012 organising committee. "We are learning the way people eat in the venues and across the park. We want our spectators to be as happy as possible and we will do our level best to try and improve the situation."
"Following high levels of demand, we have increased provisions and
also introduced roaming concession sellers at our venues," said a
spokesman for Locog.