Preheat your oven to 425°F (220°C) and line a baking sheet with parchment paper.
Slice the sweet potato into uniform thin fries, toss them with avocado oil and a pinch of salt, then spread them in a single layer on the baking sheet.
Bake the sweet potato fries for 20-25 minutes, flipping halfway through, until they are golden and crispy.
While the fries bake, heat a non-stick skillet over medium-high heat and add the ground beef, breaking it apart with a spatula.
Season the beef with garlic powder, onion powder, salt, and pepper, cooking until fully browned and slightly caramelized.
In a small bowl, whisk together the Greek yogurt, lemon juice, and dried dill to create a clean-eating ranch dressing.
Plate the crispy fries and pile the seasoned ground beef on top.
Garnish with diced red bell peppers and sliced green onions, then finish with a generous drizzle of the yogurt ranch.