In a medium-bowl, mix together beef, garlic-powder and salt. Heat avocado or coconut-oil in large-skillet, preferably cast-iron, over medium-heat, then add beef & brown, crumbling with spatula or spoon.
Make fast guacamole: In a medium-bowl, mash together lemon juice, avocado and ½ tsp salt.
Make the special sauce: whisk together all special-sauce ingredients, using coconut-aminos only if you are on a Whole30 & skipping the maple-syrup. If you are NOT on a Whole30, forget the coconut-aminos & use the maple-syrup just. Set aside.
When beef is browned & simmer, remove from skillet then return to medium-heat. Add red-onions in a layer & cook till lightly charred on-the bottom, then flip. Cook till lightly charred on the next side remove & repeat till all of onions are lightly-cooked.
Assemble: begin with a layer of romaine on your serving-bowls, then spoonful ¼ of this ground-beef mixture into the middle. Arrange remaining items round the beef: pickles, bacon, tomatoes, red-onion, and guacamole. Drizzle with loads of unique sauce and serve.