01 -
Warm butter, then soften the onion until it's clear. Toss spinach in and let it wilt. Add garlic, stir briefly, and sprinkle with pepper.
02 -
Stir in cream cheese and let it smooth out. Add the breadcrumbs and parmesan, mix together, then take off the heat.
03 -
Sprinkle salt and pepper over the fish. Spread out puff pastry and divide it into sections, each big enough to wrap a fillet with a bit extra on all sides.
04 -
Set each fillet on the pastry, spoon the spinach mixture on top, brush the pastry's edges with egg, and fold everything up to seal the salmon inside.
05 -
Flip Wellingtons seam-side down, move them onto a baking tray lined with parchment, and make small cross slits on top using a knife.
06 -
Pop it into an oven heated to 200°C (390°F) for 30 minutes, or until the pastry is perfectly browned.