Udon Noodles - Delicious fast food

Just back from a month in Japan. Credit where it is due, nowhere does restaurants like Japan. Huge city populations and a tendency to eat out regularly creates stiff competition.  This attractive fast-noodle restaurant, serving mainly the large white udon type was recently featured in an architecture magazine, yet the average spend per customer for this successful chain is only 580 Yen (£4.67 at today's exchange rate). If we could get this quality in the UK for such prices, eating out would be revolutionised.