Preheat your oven to 425°F (220°C).
Wash the sweet potato thoroughly and cut it into 1/2-inch cubes. Toss with a pinch of salt, black pepper, and half the olive oil.
Spread the sweet potato cubes on a baking sheet and roast in the oven for about 20-25 minutes until tender and slightly caramelized, stirring halfway through.
While the sweet potatoes are roasting, trim the ends of the green beans. Toss the green beans lightly with a pinch of salt, black pepper, and the remaining olive oil.
Place the green beans on a separate baking sheet and roast in the oven for about 15 minutes until crisp-tender, or sauté them in a non-stick skillet over medium-high heat if you prefer more crispiness.
In a medium skillet over medium heat, add the ground beef. Season with a pinch of salt and black pepper. Cook, breaking it up with a spoon, until it’s fully browned and cooked through, about 7-10 minutes.
Once everything is cooked, plate the ground beef along with the roasted sweet potatoes and green beans. Serve warm and enjoy your balanced, savory meal.