Preheat your oven to 425°F (220°C). Line a baking tray with parchment paper for the fries, and lightly grease another tray for the cod.
Spread the french fries in a single layer on their tray. Bake according to the package instructions, usually about 15-20 minutes, until they are golden and crispy. Halfway through, give them a shake or a turn for even cooking.
While the fries are cooking, place the breaded cod on the prepared tray. Bake for 16-20 minutes, flipping halfway through. The cod should be golden and crispy on the outside, and flaky on the inside. Ensure it reaches an internal temperature of 145°F.
Arrange the crispy cod and golden fries on a plate. Serve with lemon wedges and a bowl of tartar sauce on the side for that authentic Fish & Chips experience.