Use slender carrots.
Slim carrots roast more evenly. If your carrots are thick, slice them lengthwise so each carrot is roughly the same size. This will help them all cook at the same rate.
Don’t skip the parchment packet.
Cooking these carrots en papillote helps them steam in their own juices while soaking up every bit of the harissa honey glaze. Plus, cleanup is a breeze!
Use roasted pistachios.
Make sure to use roasted pistachios. If you can only find raw ones, a quick toast in a dry skillet brings out the natural oils and adds an extra layer of nutty flavor.
Add garnishes right before serving.
Crumble the feta and sprinkle the pistachios at the last minute so they stay fresh and maintain their respective textures.