Tender Mushrooms Baked in Foil with Herbs

There is something satisfying about opening a foil parcel at the table and getting a rush of parsley and oregano before you see anything at all. This one is a simple way to bake mushrooms, and it leans on a trick older than most ovens: sealing food in a packet so it steams in its own juices.

Mushrooms are mostly water, which is why they shrink so much when they cook. Once they are heated, they release that liquid, and in a sealed foil packet the liquid has nowhere to go. It mingles with the butter and lemon and turns into a loose, savoury sauce that you will want to spoon over the top. That is the reason the parcel tastes richer than the handful of ingredients would suggest. If you open the foil and find the mushrooms swimming a little, that is the plan working, not a mistake.

A practical tip: give the mushrooms a quick rinse and then dry them well before you add the other ingredients. Wet mushrooms make the packet soggier than it needs to be. Chopping the onion very finely matters too, because the small pieces soften within the 15 minutes and blend into the sauce instead of staying crunchy in the middle. Press the foil edges firmly so the seal holds, and check for any gaps before the parcel goes into the oven.

Leftovers are rare with this dish, but if you have some, let them cool, keep them in a covered container in the fridge, and eat them within a day or two. They are good stirred into scrambled eggs the next morning or spooned over toast with a little extra lemon. Reheat them gently in a pan so they do not turn rubbery.

For a light meal, serve these alongside a bowl of Crisp Greek Salad with Lemon Herb Dressing. The sharp cucumber and tomato balance the earthy mushrooms, and the extra lemon in the dressing echoes what is already in the parcel. If you want something warm and comforting, a small bowl of Indian Barley and Mushroom Soup makes a filling companion, and it is a good way to stretch a small batch of mushrooms further. For a make-ahead idea, Charred Capsicum Salad with Roasted Mushrooms pairs well when you are cooking for a few more people.

Serve the parcels warm, straight from the oven, while the steam is still rising. That first smell is most of the pleasure.