Here's a tip, although you might be tempted to go with extra lean hamburger meat for this burger, given all the cheese, I don't recommend it, unless you want blue cheese flavored dry burgers. Put ground beef, mustard, garlic, onions, blue cheese, water, egg, and a sprinkling of salt and pepper into a large bowl.
Make the low-carb special sauce includes homemade keto mayonnaise, gherkin, white vinegar, garlic powder, onion powder, mustard powder, dill, sweet paprika, ground white pepper, and erythritol. Spread on the bun or patty. Toss the patties onto sesame seed low carb burger bun and top with another.
In a large bowl, mix the ground beef, blue cheese, chives, hot pepper sauce, Worcestershire sauce, black pepper, salt, and mustard. Cover, and refrigerate for 2 hours. Preheat grill for high heat. Gently form the burger mixture into about 12 patties.
There are recipes for beef burgers, turkey burgers, salmon burgers, bacon, egg, and even cheeseburger casseroles and slow cooker healthy burger style recipes. The easiest keto burger recipe is to place your beef burger pattie on a large salad with lots of toppings such as cheese, pickles, avocado, bacon, salsa, onions, and sometimes, sour cream.