Preheat your oven to 400°F (200°C).
Halve the baby potatoes and toss them with the olive oil and a pinch of salt on a baking sheet, then roast for 15 minutes.
Add the asparagus spears to the baking sheet with the potatoes and roast for an additional 8-10 minutes until both are tender and golden.
While vegetables roast, remove the side muscle from the scallops, pat them extremely dry with paper towels, and season with sea salt and black pepper.
Heat a large cast-iron skillet over high heat until very hot, then add a drizzle of oil to coat the bottom.
Place scallops in the pan and sear for 2 minutes without moving them to achieve a deep golden crust, then flip and sear for 1 minute more.
Lower the heat to medium-low and add the ghee, minced garlic, lemon juice, and chopped parsley to the pan.
Spoon the melting herb butter over the scallops repeatedly for 1 minute before removing from heat and serving immediately with the roasted vegetables.