Okay, killing an orc or gnoll, that
I can see. It's kill or be killed in most of those situations, or at least it would be if you let them win the initiative roll. But that hassenpfeffer you're cooking on the campfire after a long day of adventuring? Come on! How can you call yourself good aligned when you indiscriminately kill and eat rabbits and onions with a 5th level druid in the party who can prove demonstratively that they're sentient?
And don't think you 3rd Edition diehards have any moral high ground here. You've known for much
longer what sins you commit when you nosh.
And don't give me your Traveller's Feast workarounds. Even if that food was conjured out of nowhere and not just poached from extraplanar kitchens, by the time you've reached 4th level, you've killed more than your fair share. As far as I'm concern, the new alignment system should have been boiled down to fruitarian and chaotic evil.