Cheesy baked butternut squash polenta recipe you’ll love
Peer reviewed by UK recipe editorsAuthored by UK recipe editorsOriginally published 18 Oct 2025
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Cheesy Baked Butternut Squash Polenta is a delightful vegetarian dish that showcases the comforting flavours of autumn. The creamy polenta, enriched with full-fat milk and nutmeg, pairs beautifully with the sweetness of roasted butternut squash. Topped with melted Fontina and Parmesan cheeses, this dish not only satisfies the palate but also fills the kitchen with an inviting aroma that will entice anyone nearby.
Ideal for a family dinner or a special occasion, this dish offers a hearty yet comforting meal that can easily become a favourite. Rich in nutrients from the butternut squash and enhanced by fragrant sage, it makes for a balanced option that can be served alongside a crisp salad or simply enjoyed on its own for a wholesome, vegetarian delight.
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Ingredients for Cheesy baked butternut squash polenta
15 ml kosher salt, plus more
150 g coarse polenta
900 g butternut squash, peeled, deseeded, cut into 2.5 cm pieces
480 ml full-fat milk
1 g freshly grated nutmeg
42 g Parmesan, finely grated
60 g unsalted butter, cut into pieces, plus more for the pan
45 ml extra-virgin olive oil
75 g sage leaves
225 g Fontina cheese, cut into 1.5 cm pieces
How to make Cheesy baked butternut squash polenta
Combine 1 tablespoon of salt and 1.5 litres of water in a large pot and bring to a boil.
Gradually whisk in the polenta, then cook over medium-high heat, whisking constantly, until the polenta begins to thicken, about 5 minutes.
Stir in the squash, reduce the heat to medium-low, and continue to cook, stirring occasionally, until the polenta is thick and no longer gritty, and the squash mashes easily when pressed with the back of a spoon, 30–40 minutes.
Mix in the milk and nutmeg, increase the heat to medium-high, and cook, stirring constantly while smashing the squash with the back of the spoon, until the squash is fully dissolved into the polenta, 10–15 minutes.
Remove from heat and stir in the Parmesan and 60 g of butter until melted. Let the mixture cool slightly.
Meanwhile, heat oil in a large frying pan over medium-high heat until shimmering.
Add the sage and cook, stirring, just until the leaves are lightly crisped and darker in colour, about 1 minute.
Using a slotted spoon, transfer the sage to a plate lined with paper towel to drain.
Grease a shallow 2.5-litre baking dish with butter, then transfer the polenta mixture into the dish.
Scatter the Fontina cheese over the top and press down lightly with a spoon to submerge.
Top with the crisped sage. Let cool to room temperature, then cover and chill in the fridge overnight or for up to 2 days.
Preheat the oven to 190°C (fan 170°C).
Uncover the dish and bake the casserole until bubbly and lightly browned on top, 30–35 minutes.
Let sit for 10 minutes before serving.
Disclaimer
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.
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Article history
The information on this page is peer reviewed by qualified clinicians.
18 Oct 2025 | Originally published
Authored by:
UK recipe editors
Peer reviewed by
UK recipe editors

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