Preheat your oven to 425°F for roasting the vegetables.
Peel and cut the sweet potato into thin, even slices or small cubes for crispiness, and trim the asparagus by snapping off the woody ends.
Toss the sweet potato pieces and asparagus in half of the olive oil, sprinkle with a pinch of salt, and spread them on a baking sheet.
Roast the vegetables in the oven for about 20-25 minutes, turning halfway through, until they are tender and crispy.
While the vegetables roast, pat the steak dry with paper towels to ensure a good sear.
Season the steak generously with salt, black pepper, and the mixed fresh herbs. Rub the minced garlic onto the steak for added flavor.
Heat the remaining olive oil in a heavy skillet over medium-high heat.
Once the oil is hot, add the steak and sear for about 3-4 minutes per side for medium-rare, adjusting the time to your preference.
Allow the steak to rest for a few minutes after searing, then slice thinly against the grain.
Plate the sliced steak with a serving of roasted asparagus and crispy sweet potatoes, and enjoy while warm.