I wouldn’t use coconut flour as it has a very very strong coconut flavor and it’s very sweet. Ew. Of course, each to their own, I know many people love it in non-sweet foods…
I wondered what I did with the grains in recipes… Oily seeds! (And sometimes their flours but those are usually not tasty at all. Almond flour is neutral but too expensive for me, coconut flour is okay but almost only for desserts due to the flavor…) So I could try those if I felt something is needed… But I would need experiments. Carbs are impossible to emulate, they and their lack is just too obvious. But it’s no problem, we can do so much better than grains, tastier too
I made so many wonderful keto cakes, good texture, good taste, grains are overrated And they don’t even have the super helpful meat as this meatloaf do! It must be possible and not even too hard to do well… I probably would like the result if I had my way with it. And I had to cut the ingredients list quite severely, I just don’t use zillion ingredients (several carby) for a mere dish.
Whatever you do with it, good luck! And tell us the results! And then I will live vicariously through you while trying to stick pretty close to carnivore in August! Not like I couldn’t make my own carni or mosly carni meatloaf, of course. I probably won’t, I am more interested in biscuits and desserts when I make new recipes but who knows? This recipe mildly interests me.