Burgers love toppings. I like bacon and cheese and avocado and mushrooms but some people like egg too. Maybe a lil onion. On a bed of spinach. You could even make like a creamy sauce with heavy cream and cheese, why not!
You could make a side salad with fatty dressing. You could get some yummy veg like asparagus, cauliflower, broccoli and steam, roast, or braised it in salt water or Bone broth and then saute in bacon grease or butter or oil.
I’ve heard roasted radishes are the keto potatoes. I bought a bunch but haven’t made them yet.