This is a difficult adjustment to make in terms of meal planning and getting the calories. It took me some experimenting before I found fats I enjoyed eating. For me I eat lots of whipped cream, butter, creamed coconut (I LOVE this one, 11g fat, 1g protein, 1g sugar). Dinners are usually salads with tons of olive oil and a bit of assorted vinegar for flavouring. Bacon is good but I try buy the fattiest stuff available (it's usually cheaper as a plus) and don't cook the grease off. Egg yolks are awesome. Scrambled eggs with only one egg white, the rest being yolks can soak up soo much butter and it tastes great. Amazon has a free book right now: https://www.amazon.ca/dp/B01DTO5J8G/ref= (Canadian site but you should have a link to redirect to .com if you are in the states). I just grabbed that today and haven't read it yet but I'm hoping there are some good options in there.
It definitely takes some tinkering but you can eat tasty foods while avoiding carbs and limiting protein. Even if 50g is too restrictive try 70 or just lower your protein and increase fat and see what happens. It also depends on meal timing. Eating under 25g every few hours will result in shorter insulin spikes as the energy gets delivered faster. So you're anabolic states are much shorter than say having to digest 100g of protein all at once. The whole time that protein is being delivered glucagon is suppressed and weight loss is impossible.