Preheat your oven to 425°F. Peel and dice the sweet potato into bite-sized cubes.
Toss the sweet potato cubes with half a teaspoon of olive oil, salt, and pepper, then spread them evenly on a baking sheet.
Roast the sweet potatoes in the preheated oven for 20-25 minutes or until tender and lightly caramelized, stirring halfway through.
While the sweet potatoes roast, heat a skillet over medium-high heat and add the remaining olive oil.
Add the lean ground beef to the skillet. Sprinkle in the chili powder, ground cumin, garlic powder, salt, and pepper. Cook until the beef browns evenly, breaking it up as it cooks, about 6-8 minutes.
Once both the sweet potatoes and the beef are cooked, assemble your plate by adding a serving of the spiced beef and a portion of roasted sweet potatoes.
Slice or cube the avocado and gently fold it into the dish or serve on the side to maintain its creamy texture.
Serve immediately and enjoy a nutrient-packed meal that's as flavorful as it is balanced.