Whole30, Low Carb, Grain Free, Paleo, Gluten Free
Smash the garlic cloves, then whisk together all the marinade ingredients in a medium bowl. Pour over the flank steak, cover, and marinate for an hour.
Pat the steak dry with paper towels and season lightly on all sides with salt and pepper.
Preheat your pan over high heat and grill the steak for about 3-4 minutes per side for medium rare. Once it's cooked, set it aside.
Allow it to rest for at least 5 minutes, then slice it against the grain.
Slice the iceberg in half from the stem, and gently scoop out sections with your hands to make the bun. Slice the tomatoes. Scoop out the avocado and mash it with a fork.
Layer the lettuce halves with mayo, smashed avocado, sliced tomato, bacon, and slices of the steak.
Drizzle with ranch and season with salt and pepper to taste.