Preheat your oven to 425°F. Line a baking sheet with parchment paper.
Peel (if desired) and cut the sweet potato into fry-like strips. Toss the fries with 1/2 tbsp of olive oil, salt, pepper, and a pinch of smoked paprika.
Spread the sweet potato fries evenly on the baking sheet, ensuring they are in a single layer.
Place the fries in the oven and roast for about 25-30 minutes, turning halfway through, until they are tender inside and crispy on the edges.
Meanwhile, prepare the cod fillet. Pat the cod dry with a paper towel.
In a shallow bowl, lightly beat the egg white. In another bowl, combine the whole wheat panko breadcrumbs with a pinch of salt, pepper, garlic powder, and smoked paprika.
Dip the cod fillet in the egg white, then coat evenly with the panko mixture.
Place the breaded cod on a separate parchment-lined baking sheet. Drizzle lightly with the remaining 1/2 tbsp olive oil.
Once the fries have been roasting for about 15 minutes, put the cod in the oven. Bake for approximately 12-15 minutes, or until the cod is opaque and flakes easily with a fork.
Remove both the cod and fries from the oven. Squeeze a lemon wedge over the cod for a bright finish.
Plate the crispy baked cod alongside the roasted sweet potato fries and enjoy while warm.