I went through a patch recently of being unable to face any more chicken, bacon, salmon, eggs, etc. Not that unusual, as although I usually love chicken sometimes I just went off it for a week or two. But not wanting to eat any of my usual protein sources and stay low carb did not work.
Finally I went searching for 'keto' recipes and found a couple of simple quick meals to try.
They might not work for you, but I found a great prawn & mushroom 'risotto' recipe on the headbangers site and a keto chocolate mug cake for a quick, fairly safe, sweet fix from alldayidreamaboutfood.
A few days of eating these (the prawn thing for 3 lasted me 3 days!) and I am back eating chicken again.
Hopefully you can find something you enjoy from one of more of the keto sites.