In a medium bowl, whisk to combine kimchi juice, tamari, sesame oil and optional hot sauce. Set aside.
Season steak on both sides with salt and pepper. In a large skillet over medium high heat, warm 1 tablespoon olive oil until just smoking. Sear steaks until lightly charred and cooked through, about 3-4 minutes per side depending on thickness of the meat. Remove and set aside on a plate to rest.
Place skillet back over medium heat, melt ghee and cook onions until soft and translucent, about 3-5 minutes. Stir in chopped kimchi, cauliflower rice and 1/2 of the tamari mixture. Reserve the other half to drizzle over final dish. Fold in chopped kale and remove from heat.
Place a medium nonstick skillet over medium high heat. Drizzle in 2 teaspoons ghee and fry eggs until whites are set and yolk is still soft.
To assemble, spoon cauliflower rice into a bowl, top with sliced steak and a fried egg. Garnish with a pinch of chili flakes, chopped scallions and lime wedges.