Preheat your oven to 425°F and line a large baking sheet with parchment paper.
Slice the sweet potato into 1/4-inch thick matchsticks, ensuring they are uniform for even cooking.
Toss the sweet potato fries with olive oil and sea salt in a bowl until well coated, then spread them in a single layer on the baking sheet.
Roast the fries for 20-25 minutes, flipping halfway through, until they are golden brown and slightly crisp.
While the fries roast, heat a non-stick skillet over medium-high heat and add the ground beef, breaking it apart with a spatula.
Stir in the chili powder, cumin, garlic powder, onion powder, and diced bell peppers, cooking until the beef is browned and the peppers are tender.
Once the fries are done, pile the seasoned beef mixture over the fries and sprinkle with the shredded sharp cheddar cheese.
Return the pan to the oven for 2-3 minutes, or until the cheese is bubbly and melted.
Garnish with sliced jalapeños and fresh cilantro before serving immediately.