01 - Preheat oven to 425°F. Line a baking sheet with parchment paper.
02 - Combine ground turkey, onion, garlic, egg, parsley, Dijon mustard, smoked paprika, salt, and black pepper in a large bowl. Mix until just combined. Form into 4 equal patties.
03 - Place sweet potato fries on the prepared baking sheet. Toss with olive oil, smoked paprika, garlic powder, salt, and black pepper. Spread fries in a single layer.
04 - Bake sweet potato fries for 25 to 30 minutes, flipping halfway through, until crispy and golden.
05 - Heat olive oil in a large skillet over medium heat. Cook turkey patties for 6 to 7 minutes per side, until golden and cooked through to an internal temperature of 165°F.
06 - Add a slice of cheddar cheese to each patty in the last minute of cooking. Cover skillet to melt cheese.
07 - Toast burger buns if desired. Layer bottom bun, lettuce, turkey patty with melted cheese, tomato, red onion, sauces, and top bun.
08 - Serve immediately with hot sweet potato fries on the side.