My sister in law shared this 4 ingredient bake last summer and it is absolutely phenomenal

My sister-in-law brought this lemon ricotta pasta bake to a family get-together last summer, and we scraped that glass casserole dish clean right at the picnic table. It’s the kind of recipe that feels almost too simple to be special—just four ingredients you can grab on a quick trip to town—but when it comes out of the oven, it’s creamy, bright, and comforting in that old-fashioned Midwestern way. The ricotta bakes into a soft, fluffy sauce that clings to every piece of penne, with little flecks of lemon zest catching the light. This is the kind of dish you make when you want something warm and homemade without fuss, the way our mothers and aunts used to cook when they were feeding a crowd and watching the clock.

This lemon ricotta pasta bake is lovely just as it is, but I like to round it out the way we always did on the farm: with a simple green salad dressed in oil and vinegar, and maybe some garlic bread or buttered rolls to swipe through the creamy sauce in the bottom of the dish. It pairs nicely with roasted or grilled chicken if you want more protein on the plate, and a side of steamed green beans or asparagus keeps the meal light and fresh. For a simple summer supper, serve it warm from the oven with sliced garden tomatoes and a glass of iced tea.

Servings: 6

12 oz dry penne pasta

Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch glass casserole dish with olive oil or butter so the pasta doesn’t stick.

Bring a large pot of well-salted water to a boil. Add the penne and cook until just shy of al dente, about 1–2 minutes less than the package directions. Before draining, carefully scoop out about 1/2 cup of the hot pasta water and set it aside. Drain the pasta well.

While the pasta cooks, make the lemon ricotta mixture. In a large bowl, combine the ricotta cheese, 1 cup of grated Parmesan, the finely grated zest of both lemons, and the juice of 1 lemon to start. Add the salt and pepper, if using. Stir until everything is smooth and creamy. Taste and add more lemon juice if you like it brighter.

Add the hot, drained penne to the bowl with the lemon ricotta mixture. Toss gently until every piece of pasta is coated. If the mixture seems too thick or dry, stir in a few tablespoons of the reserved hot pasta water, just enough to loosen it into a creamy coating that clings to the pasta but still stirs easily.

Transfer the coated pasta into the prepared glass casserole dish, spreading it into an even layer. Sprinkle the remaining 2 tablespoons of Parmesan over the top for a light, golden finish.

Bake, uncovered, in the preheated oven for 18–22 minutes, or until the edges are bubbling, the top looks just set, and you can see a little creamy sauce between the pieces of penne. The cheese should stay mostly pale with just a hint of golden color around the edges.

Remove the dish from the oven and let it rest for about 5 minutes so the sauce can settle and cling to the pasta. If you like, grate a little extra lemon zest over the top right before serving for a fresh, fragrant finish.

Serve warm, scooping generous spoonfuls straight from the glass dish. The pasta should look creamy and bright white, with flecks of lemon zest and each piece of penne well coated in the ricotta mixture.

If you’d like to stay close to the spirit of the original four-ingredient bake my sister-in-law shared, think of the four essentials as dry pasta, ricotta, Parmesan, and fresh lemon. The salt, pepper, and pasta water are just quiet helpers in the background, and you can leave the pepper out if you prefer. For a slightly richer version, stir in a splash of cream or a small handful of shredded mozzarella along with the ricotta, knowing that will technically add to your ingredient list. You can also fold in a cup of cooked, shredded chicken or a handful of frozen peas (thawed and patted dry) before baking to make it more of a one-dish meal. If you like a bit of color on top, broil the dish for 1–2 minutes at the end of baking, watching closely so the cheese doesn’t burn. For food safety, keep the ricotta refrigerated until you are ready to mix it, and don’t leave the finished pasta out at room temperature for more than 2 hours; refrigerate leftovers promptly in a covered container and enjoy them within 3–4 days, reheating until steaming hot all the way through. When reheating in the oven or microwave, you can add a spoonful of water or milk and cover the dish loosely so the pasta stays creamy and doesn’t dry out.