We quarantined in London last summer and specifically chose to be in the London Bridge neighborhood. It was recommended to us by a local as a great neighborhood known for fantastic local restaurants and the Borough Market, one of London's oldest and best open air food markets, once our quarantine was over.
The Borough Market was established in 1756 and was revitalized in the 1990s as a farmers market for high-quality food and now also houses several top restaurants. Not all of the restaurants and stalls are open every day, so you need to double check the schedule if you’re looking for a specific place. You can find fishmongers, butcher shops, cheese shops, spices, and more.