Preheat your oven to 400°F and line a baking sheet with parchment paper.
Toss the cubed red potatoes with 1 tsp of olive oil, half of the sea salt, and half of the black pepper.
Spread the potatoes on the baking sheet and roast for 20 minutes.
Add the trimmed asparagus to the baking sheet, tossing with the potatoes, and roast for an additional 10 minutes.
While vegetables roast, season the steak on both sides with the remaining salt, pepper, rosemary, and thyme.
Heat the remaining 1 tsp of olive oil in a cast-iron skillet over medium-high heat.
Sear the steak for 4 to 5 minutes per side for medium-rare, or until it reaches your desired doneness.
Add the minced garlic to the skillet during the last 60 seconds of searing to infuse the steak with flavor.
Remove the steak from the pan and let it rest for 5 minutes before slicing and serving alongside the roasted vegetables.