I had one of those "Duh!" moments yesterday when I read that protein converts to glucose at a rate of 58%, which is why fat is supposed to be the super majority of calories in a keto diet. I always thought protein was and remained amino acids!
So I'd say that you overdid it, but heck, it's one meal! I may be wrong, but you were probably not in ketosis yet, so insulin might still be a factor and push that unused glucose into the muscle as glycogen. Hopefully someone else with more knowledge will put their two cents in.