Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Halve the baby potatoes and toss them on the baking sheet with 1 teaspoon of avocado oil and a pinch of sea salt.
Roast the potatoes for 10 minutes, then add the asparagus spears to the sheet with another pinch of salt and roast for 10 more minutes.
Pat the steak completely dry with paper towels and season both sides generously with the remaining sea salt and black pepper.
Heat a cast-iron skillet over medium-high heat with the remaining teaspoon of avocado oil until it begins to shimmer.
Place the steak in the hot skillet and sear for 3-4 minutes per side to develop a deep golden-brown crust.
Reduce the heat to medium-low and add the ghee, smashed garlic cloves, rosemary sprig, and thyme sprig to the pan.
Tilt the skillet slightly and use a large spoon to continuously baste the steak with the foaming herb butter for 2 minutes.
Transfer the steak to a cutting board and let it rest for at least 5 minutes before slicing against the grain to serve with the roasted vegetables.