Preheat your oven to 425°F.
Peel and cube the sweet potato. Toss it with half a teaspoon of olive oil, garlic powder, salt, and black pepper. Spread it evenly on a baking sheet.
Roast the sweet potato in the oven for about 20-25 minutes until tender and lightly caramelized.
While the sweet potato is roasting, cut the broccoli into florets. Toss with a small drizzle of olive oil, salt, and pepper, and place on a separate baking sheet. Roast in the oven for 15-20 minutes, until edges are slightly crispy.
Season the lean beef strips with a pinch of salt, pepper, and a light sprinkle of garlic powder.
Heat a skillet over medium-high heat and add the remaining olive oil. Sear the beef strips for about 2-3 minutes per side until browned and just cooked through. Avoid overcooking to maintain juiciness.
Plate the seared beef strips alongside a serving of roasted broccoli and sweet potato.
Serve immediately and enjoy your balanced and flavorful dinner.