In a skillet over medium heat, brown the ground beef until cooked through. Add salt, pepper, garlic powder, onion powder, Worcestershire sauce, and mustard while cooking. Drain excess fat if needed and set aside.
In a small bowl, whisk together greek yogurt, ketchup, mustard, pickle juice, garlic powder, salt, and pepper. This creamy dressing is the perfect burger salad bowl sauce and ties everything together
In two serving bowls, layer chopped romaine lettuce, cherry tomatoes, red onions, pickles and avocado (if using). Top with warm ground beef and drizzle the special sauce dressing over everything.