In a large skillet, cook the ground beef, along with 3/4 of the chopped onion, salt and pepper over medium heat. Stir occasionally, until the meat is cooked through and browned. Drain the beef, then return to the skillet and set aside.
Stir in keto-friendly Thousand Island dressing, until all meat is coated.
Top skillet with cheese, pickles, lettuce, tomato and the remaining 1/4 onion.
Note: Nutrition information is a rough estimate only; actual values will vary based on the exact ingredients used and amount of recipe prepared. Net Carbs:4g per serving