Swiss IAL to cut 3k jobs and fleet
 

Interesting concept - business class at the front with all the trimmings and budget/no frills elsewhere with pax paying for food and drink.

Does any other airline in Europe, or elsewhere for that matter, do this?

KLM in Europe are going that way. I flew AMS-GVA-AMS in economy earlier this month. The refreshment was one turkey or cheese bread roll, tea/coffee and soft drink. No alcohol in economy anymore with KLM in Europe, although they were still supplying it as part of the 'meal' on KLMCityhopper BRS-AMS-BRS.

This was ok on a one-hour flight AMS-GVA but the KLM service agent at Schipol confirmed that this would also be the refreshment on a three-hour plus flight, say Amsterdam-Athens.
In that case economy pax have the worst of both worlds: niggardly supply of food yet no opportunity to purchase more. You might see pax bringing their own picnic hampers on board.

Perhaps the Swiss plan is the way forward.

In America, where even on 4-hour internal flight a bag of pretzels is your lunch, I have noticed a trend whereby people stock up with food at the gate and take it all on board to eat during the flight.