A Cheesy Potato Gnocchi Casserole (often called gnocchi al forno) is pure comfort food. Pillowy, tender potato gnocchi bake directly in a rich, velvety tomato or cream sauce, smothered under a blanket of bubbling, golden cheese.
Best of all, you don’t even need to boil the gnocchi beforehand—they bake right in the sauce, absorbing all the savory flavors while turning soft and melt-in-your-mouth tender.
Here is a foolproof, incredibly cozy recipe for a cheesy baked gnocchi.
Ingredients
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2 packages (16 oz each) shelf-stable or refrigerated potato gnocchi (uncooked)
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1 tbsp olive oil or butter
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1 medium yellow onion, diced
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3 cloves garlic, minced
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1 jar (24 oz) of your favorite high-quality marinara or tomato basil sauce (or substitute a rich garlic cream sauce if you prefer white sauce)
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1/2 cup heavy cream or whole milk (optional, adds a wonderful velvety richness to tomato sauce)
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1.5 cups shredded mozzarella cheese (divided)
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1/2 cup freshly grated Parmesan cheese
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A handful of fresh basil leaves, torn (plus extra for garnish)
Step-by-Step Instructions
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Preheat and Prep: Preheat your oven to 400°F (200°C). Lightly grease a 9×13-inch baking dish with a touch of oil or butter.
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Build the Sauce Base: Heat the olive oil in a large skillet or Dutch oven over medium heat. Add the diced onion and cook for 4 to 5 minutes until soft and translucent. Stir in the minced garlic and cook for 1 more minute until fragrant.
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Simmer: Pour the marinara sauce (and heavy cream, if using) right into the skillet with the onions and garlic. Stir to combine, let it come to a gentle simmer for about 3 minutes, then remove from heat. Stir in the torn fresh basil leaves.
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Combine the Gnocchi: Stir the uncooked, raw gnocchi directly into the warm sauce until every piece is completely coated.
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Assemble in the Dish: Transfer the gnocchi and sauce mixture into your prepared baking dish, spreading it out into an even layer.
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Cheese Blanket: Sprinkle 1 cup of the mozzarella cheese and all of the grated Parmesan cheese evenly over the top of the gnocchi. (Reserve the remaining 1/2 cup of mozzarella for later).
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Bake: Cover the baking dish tightly with aluminum foil and bake for 20 minutes. This traps the steam, allowing the gnocchi to cook through completely.
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Brown and Bubble: Remove the foil, sprinkle the remaining 1/2 cup of mozzarella cheese over the top, and return to the oven uncovered for 10 to 12 minutes, or until the cheese is bubbling, melted, and golden brown on top.
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Rest and Serve: Let the casserole rest for 5 to 10 minutes before serving so the sauce can settle. Garnish with a little extra fresh basil or a pinch of red pepper flakes if you like a bit of heat!
Chef’s Tips for Success
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No Pre-Boiling Required: Skipping the boiling step isn’t just a time-saver—it keeps the gnocchi from getting waterlogged. The liquid in the sauce provides all the moisture needed to cook them to perfection.
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Add a Protein: If you want to make this an even heartier meal, you can easily stir in 1 cup of cooked, crumbled Italian sausage, diced grilled chicken, or sautéed mushrooms right before adding the cheese.
Are you planning to serve this with a garlic butter crusty bread or a fresh Caesar salad on the side?
