Preheat your oven to 425°F for roasting the broccoli and sweet potato.
Slice the sweet potato into 1/2-inch rounds or cubes for even roasting. Place them on a baking sheet.
Lightly season the sweet potato with a pinch of sea salt and pepper. Set aside.
Trim the broccoli into florets, toss with a pinch of salt and pepper, and spread evenly on a separate baking sheet.
Place the sweet potato and broccoli in the preheated oven. Roast for about 20-25 minutes, or until tender and lightly browned, stirring halfway through.
While the vegetables roast, pat the 6 oz sirloin steak dry with paper towels. Season both sides generously with salt, pepper, and a pinch of garlic powder.
Heat a non-stick skillet over medium-high heat. Once very hot, add the steak and sear for about 3-4 minutes on each side for medium-rare, or until reaching your preferred doneness.
Let the steak rest for 5 minutes after searing to ensure juices redistribute.
Plate the steak alongside the roasted broccoli and sweet potato. Enjoy immediately while warm.