A classic Beef Wellington wrapped with mushrooms, prosciutto, and a delicate spinach crêpe for perfect structure and flavor—tested while cooking for 30 people.
Season the beef generously with salt and pepper. Heat oil in a skillet over high heat and sear on all sides until deeply browned. Remove and rest 10 minutes. Brush with Dijon mustard while warm.
Make the Duxelles
Pulse mushrooms, shallots, and garlic in a food processor until finely chopped. Cook with butter and olive oil over medium heat until all moisture evaporates. Season and cool completely.
Prepare Spinach Crêpes
Whisk flour, eggs, milk, spinach purée, and salt until smooth. Cook thin crêpes in a buttered nonstick pan. Cool fully.
Wrap Layer
Lay prosciutto on plastic wrap, slightly overlapping. Spread duxelles evenly. Lay spinach crêpes over the mushrooms.
Wrap the Beef
Place beef in center and wrap tightly using plastic wrap. Chill 20–30 minutes to set shape.
Pastry Wrap
Roll puff pastry large enough to fully seal the beef. If pastry is too small, gently roll it thinner—do not stretch. Seal completely so nothing leaks. Brush with egg wash.
Bake
Bake at 425°F (220°C) for 35–40 minutes until golden. Insert a meat thermometer into the center for accuracy: