You can definitely use the moonwater! They are soulbound and you can't do much else with them :D
There's a few good places to get food:
- Fishing as often as you can, and also hiring Koda to go on fishing trips for 1-5k pebbles (it is capped at 5k per trip), and then cooking the fish you get.
- Farming edible crops and just eating them. While a lot of crops can be made into complex dishes, they often require additional, harder-to-get items.
This thread has a resource for all the recipes in the game right now if you wanted to look!
- Buy out the food in the Mole Market every refresh. It refreshes every 6 hours and the food is fairly cheap there, often less than 100p per piece.
- A bit later on, campaigning in certain areas with 1 wolf + 1 companion will net you food. Oof note, WIndbourne's Retreat in Icerun has an encounter called Fishing: Winter Stream which gives 6 fish that you can cook, and if you have a lvl10 kit and zapscour combo you should be able to defeat the Brochs in Western Barrens in Goldsea, which along with the moths and other encounters should also net you food.
- There's a couple of food banks in the Giveaways forum (along with some cool, other giveaways and events) that will give out free food! I have one
here, and I can send you some right now ^_^