I’m surprised at this list from The Guardian, which includes red meat. As of February, I don’t eat fish (or shellfish) so mussels are off the list for me as well.

What is important, I think, is the bit at the bottom about waste food. I’ve started putting coffee grounds on the garden, and that banana skin curry sounds… interesting!

If, as a planet, we stopped wasting food altogether, we’d eliminate 8% of our total emissions – so one easy way to eat for the planet would be to tackle that, Steel points out. That could be through preserving and making stock from meat and fish bones – but it could also be as simple as eating as much of a fruit or vegetable as possible. “The skin, the seeds, the leaves – these are where the phytonutrients are,” she says, citing Nigella’s banana skin curry as an example. Supporting companies which are repurposing waste – surplus bread into beer, surplus fruit into condiments and chutneys – is another easy win.
Source: Eat this to save the world! The most sustainable foods – from seaweed to venison | The Guardian