01 - Heat a large skillet over medium-high heat. Add the ground beef, breaking it apart with a spoon. Season with salt, black pepper, garlic powder, and onion powder. Cook for 8–10 minutes until thoroughly browned and no pink remains. Drain excess fat if necessary.
02 - While the beef cooks, chop the romaine lettuce, dice the tomatoes, thinly slice the red onion, chop the dill pickle, and slice the avocado. Set aside.
03 - Divide the chopped romaine lettuce evenly among four serving bowls to create a fresh, crisp base.
04 - Spoon the hot seasoned ground beef over the lettuce in each bowl.
05 - Layer the diced tomatoes, sliced red onion, chopped pickle, sliced avocado, and shredded cheddar cheese over the beef in each bowl.
06 - Drizzle each bowl with burger sauce or mayonnaise, ketchup if using, and yellow mustard to taste.
07 - Sprinkle with sesame seeds and fresh chopped chives. Serve immediately while the beef is still warm.