Add all ingredients to a baking dish or container, cover, and shake gently to coat.
Bake at 200c/390f. for 45–50 minutes, flipping halfway, until golden and slightly crisp on the edges. Note: you can also cook this in the air fryer and it takes around 20 minutes.
Store in the fridge for up to 3 days, or freeze for up to 2 months.