I do keep it simple. Yes, my sponge cakes are among my less simple carnivore dishes (definitely less simple than boiling on egg or toss some meat with some salt into the oven or into a pot of water) but they are super easy. One ingredient (sometimes two when I add a dash of salt), some mixing. A few minutes of easy and even enjoyable work, I LOVE seeing those fluffy mounds 
It’s way easier than real sponge cakes as there is no flour and it WILL deflate anyway
Still nice.
What was the problem with the pancakes? Oh you wanted those American style thick ones? I can’t do those (probably could if I wanted but we have crepes-like ones here), I make Hungarian carnivore pancakes, eggs and sour cream or mascarpone. Mostly eggs. Not everyone likes my pancakes but I dislike floury ones so each to their own.
My SO gets like 10g flour per 1-2 eggs in his very occasional pancakes. Probably 2 eggs, it’s still so much flour!
It’s the flouriest one I am able to make. But he likes them. He just doesn’t like them with ZERO flour, it’s too scrambled eggs to him (but no, it has dairy… 10g sour cream or 5g mascarpone per egg! it’s perfect and nothing like just eggs).
He never even tried my beloved sponge cake muffins while I eat at least 3 dozens of them per week. But he doesn’t even like proper sponge cakes. Who doesn’t like sponge cakes? They are the best, most eggy cakes… Okay, not everyone is an egg maniac, I get it…
Oh indeed, drinks! Coffee with cream and egg yolk, with lots of whipped cream on top with a hint of cocoa if I was something really luxurious 
But a simple creamy coffee is a nice dessert too.
And I like a nice (unsweetened, I am evolved to that level, amazing) cocoa drink too but that’s even less carnivore. But sometimes I care more about quitting coffee 