Grill (broil) the sausages on a medium/high heat for 15 minutes, turning occasionally, until fully cooked.
Preheat your oven to 180C / 160C fan/ gas mark 4 / 350F.
Chop the end off the bunch of spring greens and separate into individual leaves. Cut out any thick stalky bits from the middle of the leaves and chop any really large leaves in two. You are aiming for leaves big enough to wrap ⅓ of a sausage.
Put the trimmed leaves in a large saucepan or bowl and pour over 1 litre of boiling water. Leave the leaves in the water for about 1 minute, until pliable – so you can easily wrap them round a bit of sausage – then drain into a colander.
Tip the passata into a saucepan, fill up the passata jar with water and tip the water into the saucepan too. Crumble in the stock cube and add a few twists of black pepper. Heat gently until just about bubbling, then turn off.
While the passata is heating you can use the time to chop up the mushrooms.
When everything is ready, pour about ⅓ of the passata into the bottom of a large ovenproof dish. Chop each sausage into 3 equal pieces and carefully wrap each piece with one spring green leaf. Pop the parcel into the ovenproof dish and repeat until all the parcels are in the dish.
Tuck the mushrooms and any leftover greens in between the parcels and then pour the remaining passata over the top. Check to make sure all the mushrooms are submerged and push down any that aren’t. Cover the dish with foil and bake for 30 minutes.
While the sausage parcels are in the oven, cook the rice (or pasta, or potatoes) according to packet instructions / your preferences.
Serve the rice in a big mound on the plate with the parcels placed on the top. Allow about 6 parcels per person. Drizzle the remaining sauce over the top and tuck in!
Notes
Suitable for freezing.
Nutrition information is approximate and meant as a guideline only.