Preheat your oven to 400°F and line a small baking sheet with parchment paper.
Halve the baby potatoes and toss them with avocado oil, a pinch of sea salt, and black pepper.
Roast the potatoes for 20-25 minutes until the edges are golden and crispy.
Pat the sirloin steak completely dry with paper towels and season both sides with the remaining salt and pepper.
Heat a cast-iron skillet over medium-high heat until very hot, then sear the steak for 3-4 minutes per side.
Reduce the heat to medium and add the ghee, smashed garlic cloves, rosemary, and thyme to the pan.
Tilt the skillet and continuously spoon the melting herb ghee over the steak for 2 minutes to infuse flavor.
Transfer the steak to a cutting board to rest for at least 5 minutes before slicing.
Add the asparagus to the same skillet and sauté in the remaining herb ghee for 3-5 minutes until bright green.
Serve the sliced steak alongside the roasted potatoes and sautéed asparagus.