Preheat your oven to 425°F (220°C) and line a large baking sheet with parchment paper.
Slice the sweet potato into thin, even matchsticks to ensure they crisp up properly.
In a bowl, toss the sweet potato matchsticks with the olive oil and half of the salt, pepper, and paprika.
Spread the potatoes in a single layer on the baking sheet and roast for 10 minutes.
While potatoes roast, whisk the egg in a shallow bowl and combine the almond flour with the remaining spices in a separate shallow dish.
Pat the cod fillet dry with a paper towel, dip it into the egg wash, then dredge it through the almond flour mixture until evenly coated.
Remove the baking sheet from the oven, push the potatoes to one side, and place the cod on the other side.
Return the sheet to the oven and bake for an additional 12-15 minutes until the fish is opaque and flakes easily with a fork.