Same in this country. There is plenty of stock, and the supermarkets have been up front telling people not to panic buy. But they keep panic buying. There is plenty of toilet paper and the factories have increased production to make sure of it, but still the crowds strip the shelves.
I'm sure restaurants have been tossing food but they probably order day by day, and can adjust quickly to reduce demand. However, when the restrictions on mass gatherings came in, there were venues that had catering for large crowds, and they could no longer use the food. They didn't dump it, they called charities that supply homeless shelters and other charities, so it didn't go to waste. From what I read, the organisations that channel food that would otherwise go to landfill, to people who need it are quite effective these days.