you already answered it. Black forest era, cooked fish (not wraps yet) is one of the best things you can get, and you can get it in bulk, and long before you ever see a wolf.
I went out yesterday for fish, one set of stamina food buffs running and fished until those wore off. I got just over 100 units in 20 min using about half that (50) units of bait which costs next to nothing. That will last me weeks IRL time. There is no way hunting boar is that fast, and deer meat is about useless unless you just started.

If you hate fishing but want the food, you can make fish traps. One they are on the shore you can pick them up. Basically you just make a long running lip on the shore so they get in when the waves roll in and get stuck on the way back out.