In a medium mixing bowl combine ground beef with seasonings and then great small onion directly into meat. Mix together to fully incorporate the onion. Heat a skillet over medium high heat, spray well with cooking spray, and cooked beef until completely cooked through and no pink remains (7-10 min). Set aside.
Create a base of romaine lettuce, top with ground beef mixture, as well as each of your toppings as desired.
Combine all burger sauce ingredients in a small mixing bowl and mix together to fully incorporate. Taste and adjust seasonings as desired. Add a dollop to your burger bowls and enjoy!