Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
Slice the sweet potato into uniform wedges and toss them on the baking sheet with half of the olive oil and a pinch of sea salt.
Roast the sweet potato wedges for 25 minutes, flipping halfway through, until they are tender and caramelized on the edges.
In a medium mixing bowl, combine the ground turkey, garlic powder, onion powder, dried oregano, and the remaining salt and pepper.
Gently form the turkey mixture into two even patties, being careful not to overwork the meat to keep them juicy.
Heat the remaining olive oil in a non-stick skillet over medium-high heat and sear the patties for 5-6 minutes per side until fully cooked through.
While the burgers cook, steam the broccoli florets over boiling water for 4-5 minutes until they are bright green and fork-tender.
Plate the turkey burgers with a dollop of Dijon mustard alongside the roasted sweet potato wedges and steamed broccoli.