Lemon Ricotta Pasta with Peas

No saucepan is needed for the sauce. Whole-milk ricotta, parmesan, lemon zest and juice, olive oil, and plenty of black pepper are stirred together in the serving bowl while the spaghetti cooks.

Frozen peas join the pasta pot for the final two minutes, so they cook without an extra pan. A few tablespoons of hot pasta water whisked into the ricotta turn it from a thick paste into a silky coating, and the drained spaghetti and peas get tossed straight in. Mint or basil on top adds a fresh, green finish to an otherwise mild, creamy dish.

Ingredient notes

Pasta. Long shapes like spaghetti or linguine are lovely here, but short shapes such as orecchiette or shells catch the peas inside, which is fun. Use whatever you have.

Ricotta. Whole-milk ricotta is creamier and less grainy than part-skim. If yours seems watery, drain it in a sieve for a few minutes. Good ricotta from a deli is a real treat in a recipe this simple.

Lemon. The zest carries most of the fragrance, while the juice brightens. Start with a tablespoon of juice and adjust at the end.

Frozen peas. They’re sweet, cheap, and cook in two minutes in the pasta water. Fresh peas, chopped asparagus, or broccoli florets can be used instead.

Parmesan. It adds salty depth. Pecorino romano is sharper and also delicious. For a strictly vegetarian dish, choose a hard cheese made with vegetarian rennet.

Herbs. Mint pairs beautifully with peas and lemon. Basil or parsley are equally good.

Step by step

Boil the pasta. Bring a big pot of water to a rolling boil and salt it generously. Cook the pasta until just al dente. Two minutes before it’s done, tip in the frozen peas; they’ll bob back up bright green when ready.

Make the sauce. While the pasta cooks, stir together the ricotta, parmesan, lemon zest, a tablespoon of lemon juice, olive oil, salt, and a generous amount of black pepper in a large bowl. It will be thick and paste-like for now.

Save the water. Before draining, scoop out half a cup of the cloudy pasta water. This starch is what makes the sauce come together, so don’t skip it.

Loosen and toss. Whisk two or three tablespoons of the hot water into the ricotta until it becomes smooth and pourable. Add the drained pasta and peas and toss with tongs. Add more water a little at a time until the sauce clings to every strand and looks glossy rather than thick.

Taste and finish. Taste and adjust with more lemon juice, salt, or pepper. Tear over mint or basil and serve with extra parmesan.

Mistakes to avoid

Draining the pasta too early and letting it sit makes it stick together and cool, so the sauce won’t melt properly. Adding too much water at once can make the sauce runny; go slowly. Underseasoning is easy with ricotta, which is mild, so be generous with salt, pepper, and lemon. Finally, don’t try to cook the ricotta in a hot pan, as it can split and turn grainy.

Variations

• Gluten-free: Use gluten-free pasta and toss quickly so it doesn’t break.
• Dairy-free: Blend soaked cashews with lemon juice, garlic, and nutritional yeast for a creamy alternative to ricotta.
• Add protein: Toss in flaked smoked salmon, leftover chicken, or crisp pancetta.
• Greens: Stir in a handful of baby spinach or arugula with the pasta; it wilts in the warmth.
• Garlic lovers: Grate a small garlic clove into the ricotta mixture.

Why the pasta water matters

Pasta water is full of starch released from the noodles as they cook. When you whisk it into ricotta and cheese, the starch helps bind the fat and liquid into a smooth, emulsified sauce instead of a clumpy one. It also adds seasoning, which is why salting the cooking water well is so important. Think of it as the glue that makes a few simple ingredients feel like a proper sauce.

What to serve with it

A simple green salad or sliced tomatoes with olive oil and salt are perfect. Roasted asparagus, sautéed zucchini, or garlic bread round out the meal nicely. If you want something a bit heartier, serve with a few slices of prosciutto or grilled chicken on the side.

Storage and reheating

This pasta is best eaten right away. Leftovers can be refrigerated for up to two days in an airtight container. Reheat gently in a pan with a splash of water or milk, stirring until creamy again. It’s also surprisingly good eaten cold or at room temperature as a pasta salad.