Cheesy Polenta Lasagne with Mushrooms and Seitan
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 16 Jan 2026
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This cheesy polenta lasagne with mushrooms and seitan offers a delightful twist on the traditional Italian classic. Replacing pasta sheets with rounds of ready-made polenta creates a gluten-free alternative that is remarkably satisfying. The combination of earthy cremini mushrooms and savoury seitan provides a meaty texture, while the nutmeg-spiced cheese sauce made with Fontina and Gruyère adds a sophisticated depth of flavour.
As a hearty vegetarian main course, this dish is ideal for a comforting weekend supper or a mid-week family meal. The use of shop-bought polenta logs makes preparation quick and easy, allowing you to focus on building the rich layers of the ragù and béchamel. Serve it alongside a crisp green salad or some balsamic-glazed roasted vegetables for a complete, nutritious dinner that everyone will enjoy.
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Ingredients for Cheesy Polenta Lasagne with Mushrooms and Seitan
1/2 stick unsalted butter
3 tablespoons plain flour
600ml whole milk
110g Italian Fontina, coarsely grated (about 240ml )
90g Gruyère, coarsely grated (about 240ml ), divided
Scant 1/2 teaspoons grated nutmeg
3 garlic cloves, thinly sliced
45ml olive oil
275g cremini mushrooms, thinly sliced
230g seitan (patted dry and thinly sliced)
1/2 teaspoons thyme leaves
45ml water
2 (16-to 500g ) logs ready-made plain polenta
How to make Cheesy Polenta Lasagne with Mushrooms and Seitan
Preheat oven to 218°C with rack in upper third. Lightly butter a 2-to 2 1/2-quart shallow baking dish.
Melt butter in a 2-to 3-quart heavy saucepan over medium heat. Whisk in flour until smooth, then cook roux, whisking frequently, until pale golden, 2 to 3 minutes.
Meanwhile, heat milk in a separate small saucepan until just about to boil. Add milk to roux in 2 batches, whisking constantly until very smooth. Bring to a boil, whisking, then cook, whisking, 30 seconds. Remove from heat and whisk in Fontina, half of Gruyère, nutmeg, and 3/4 teaspoons salt. Cover and set aside, whisking occasionally.
Cook garlic in oil in a 12-inch heavy skillet over medium-high heat, stirring, until beginning to turn pale golden. Stir in mushrooms, 1/2 teaspoons salt, and 1/4 teaspoons pepper and cook, stirring occasionally, until mushrooms are softened, about 3 minutes. Add seitan and thyme and cook, stirring occasionally, until mushrooms and seitan are slightly golden, about 4 minutes. Add water and cook briefly, scraping up any brown bits.
Spread 120ml cheese sauce in bottom of baking dish.
Slice 1 log of polenta into 1/4-inch-thick rounds and arrange enough rounds to cover bottom of dish, overlapping slightly. Spoon half of filling evenly over polenta, then spread with half of remaining cheese sauce (about 240ml ). Slice enough rounds from second log to form a second layer. Cover with remaining filling, then cheese sauce. Sprinkle with remaining Gruyère and bake until top is just bubbling and slightly browned, 15 to 20 minutes. Let stand 5 minutes before serving.
Descargo de responsabilidad
While every effort has been made to ensure the information is accurate and up to date, individual needs may vary and dietary requirements can differ based on personal health conditions. Always check food labels and allergen information before preparing or consuming any recipe. If you have specific health concerns, allergies, intolerances, or are following a medically prescribed diet, seek advice from your GP, pharmacist, or a registered dietitian before making significant changes to your diet or lifestyle.
Historia del artículo
La información de esta página ha sido revisada por médicos cualificados.
16 Enero 2026 | Publicado originalmente
Autores:
Editores de recetas del Reino Unido
Revisado por expertos
Editores de recetas del Reino Unido

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