This oven baked 3-ingredient lazy Boursin pasta is exactly the kind of dish that lodges itself in your brain after one bite. My roommate threw it together on a weeknight with almost no effort, and I genuinely haven’t stopped thinking about the silky, garlicky sauce clinging to every piece of pasta. The idea borrows from the viral baked feta pasta concept, but swaps in Boursin—a French-style Gournay cheese known for its soft, spreadable texture and built-in herbs and garlic. Everything happens in one casserole dish: the cheese melts into cream, the pasta finishes in the oven, and you end up with a deeply comforting, restaurant-level bowl of pasta that feels far fancier than the sum of its parts.
Serve this creamy Boursin pasta straight from the white casserole dish with a generous shower of freshly cracked black pepper and, if you like, a drizzle of good olive oil. A simple green salad with a sharp vinaigrette balances the richness nicely, as do roasted or steamed vegetables like broccoli, green beans, or asparagus. A crisp white wine—something like a Sauvignon Blanc or Pinot Grigio—pairs well with the garlicky, herb-studded sauce, while sparkling water with lemon keeps it weeknight-friendly. Warm, crusty bread is optional but wonderful for swiping up the extra sauce at the bottom of the dish.
Oven-Baked 3-Ingredient Lazy Boursin PastaServings: 4
Ingredients
12 oz (about 340 g) dried penne pasta
1 (5.2 oz / 150 g) round Boursin garlic & fine herbs cheese, unwrapped
2 1/2 cups (about 600 ml) whole milk
Freshly cracked black pepper, to taste (optional but recommended for serving)
Salt, to taste, for the pasta water and finished dish (optional, depending on saltiness of cheese)
Nonstick cooking spray or 1 tsp neutral oil, for greasing the baking dish
Directions
Preheat your oven to 375°F (190°C). Lightly grease a medium white casserole dish (about 2 to 2.5 quarts) with nonstick spray or a little neutral oil. This helps prevent the pasta from sticking and makes cleanup easier.
Par-cook the pasta: Bring a large pot of well-salted water to a boil. Add the penne and cook for about 6 minutes—just until the outside is slightly softened but the center is still quite firm. You’re intentionally undercooking here because the pasta will finish in the oven. Drain well and set aside.
Place the unwrapped Boursin cheese round in the center of the greased casserole dish. It should sit like a little wheel in the middle; this will melt down and become the base of your sauce.
Pour the whole milk evenly around the Boursin in the casserole dish. You want the cheese mostly surrounded by milk so it can melt into a smooth, creamy sauce as it bakes. Give the milk a gentle stir around the edges, but don’t worry if the cheese stays intact at this point.
Add the drained, par-cooked penne to the casserole dish, scattering it around and over the Boursin. Use a spoon to gently press the pasta down so most of it is submerged in the milk. It’s fine if some tips stick up above the liquid; those will get lightly toasted and add a bit of texture.
Cover the casserole dish tightly with foil. This traps steam, allowing the pasta to finish cooking and the Boursin to melt into the milk without drying out. Place the covered dish on the center rack of the preheated oven.
Bake for 20 minutes covered. During this time, the pasta will absorb some of the milk and the Boursin will soften and begin to dissolve into a creamy pool.
Remove the foil carefully, watching for steam. Using a sturdy spoon, stir the pasta thoroughly, breaking up the softened Boursin and mixing it into the milk until you see a thick, creamy sauce forming that coats the penne. Make sure to scrape the bottom and corners of the dish so no pockets of cheese remain unmixed.
Return the uncovered casserole dish to the oven and bake for another 8–12 minutes, or until the pasta is fully tender, the sauce has thickened and clings to each piece, and the top looks just a touch golden in spots. If it looks dry at any point, you can stir in a splash more milk after baking to loosen it.
Remove the dish from the oven and let the pasta rest for 3–5 minutes. This short rest allows the sauce to settle and cling more evenly to the penne, giving you that luscious, creamy coating you’re craving.
Taste the pasta and add salt only if needed; Boursin is fairly salty, so you may find it doesn’t need much. Finish with a very generous amount of freshly cracked black pepper over the top. For the visual you might be imagining: each piece of penne should be thoroughly coated in a glossy, herb-flecked cheese sauce, nestled in the white casserole dish and ready to scoop.
Serve the pasta hot, straight from the casserole dish, making sure to spoon up any extra sauce from the bottom so every serving is as creamy and indulgent as the one your roommate made that you can’t stop thinking about.
Variations & Tips
Because this recipe is intentionally minimalist, small tweaks go a long way while keeping the spirit of a lazy, three-ingredient pasta. You can swap the garlic & fine herbs Boursin for another flavor like shallot & chive or pepper, which subtly shifts the character of the sauce without adding complexity to your prep. If you prefer a richer, more decadent texture, replace 1/2 cup of the milk with heavy cream; for a lighter version, use 2% milk, understanding the sauce will be slightly less thick. To add a bit of texture and color while staying low-effort, scatter a handful of cherry tomatoes around the cheese before baking—they’ll burst and fold into the sauce. A small handful of baby spinach can be stirred in during the final 5 minutes of baking so it wilts into the creamy pasta. If you’d like a gratinéed top, sprinkle a thin layer of grated Parmesan or breadcrumbs over the surface during the last 5–10 minutes of cooking. For timing and food safety, avoid leaving the baked pasta at room temperature for more than 2 hours; refrigerate leftovers promptly in a shallow container and reheat thoroughly until steaming hot before eating. Because this dish uses milk and soft cheese, do not bake it at a lower temperature than directed, as the dairy can separate instead of forming a smooth sauce. Undercook the pasta slightly in the boiling step so it doesn’t turn mushy as it finishes in the oven, and always taste for seasoning at the end rather than salting heavily up front, since Boursin itself is well seasoned.
