Make the sauce: In a small bowl, mix the mayonnaise, sugar-free ketchup, mustard, relish, smoked paprika, and garlic powder. Add a splash of water until it’s drizzleable.
Taste and adjust salt or tang with more mustard if needed. Chill while you cook the beef.
Season the beef: In a mixing bowl, combine ground beef with salt, pepper, garlic powder, onion powder, smoked paprika, and Worcestershire. Mix gently with your hands or a fork—just until combined so the meat stays tender.
Brown the beef: Heat the oil in a large skillet over medium-high heat.
Add the beef, breaking it up with a spatula. Cook 6–8 minutes until browned with some crispy bits. If there’s excess grease, drain or blot.
Taste and adjust seasoning.
Prep the base: While the beef cooks, assemble bowls with a generous layer of greens. Top with tomatoes, red onion, pickles, and avocado.
Add cheese and beef: Sprinkle shredded cheese over the warm beef so it melts slightly. Spoon the cheesy beef onto each bowl.
Finish and serve: Drizzle with burger sauce, sprinkle with sesame seeds, and add any extra toppings you like.
Serve right away while the beef is hot and the veggies are crisp.