My sister shared this 4-ingredient trick with me after one of those chaotic weeks when I wanted to bring something to a summer potluck but had zero energy left. It’s just pasta, ricotta, lemon, and a little olive oil, all baked together until the noodles are tender and the sauce turns silky and bright. No fancy steps, no long list of ingredients—just a cozy, sunshine-y casserole you can stir together in minutes, pop in the oven, and show up with something that tastes way more impressive than the effort it took.
This oven baked lemon ricotta pasta is perfect as a main dish with a simple green salad and crusty bread to soak up the extra sauce. For potlucks, I like to set it out next to a big bowl of mixed greens, a tray of raw veggies, and maybe some grilled chicken or sausages for anyone who wants extra protein. It’s great warm or at room temperature, so it travels well and doesn’t stress you out if the buffet line runs behind.
Oven Baked 4-Ingredient Lemon Ricotta PastaServings: 6
Ingredients
12 oz dry short pasta (like penne, fusilli, or rotini)
1 1/2 cups whole-milk ricotta cheese
2 large lemons (zest and 1/4 cup juice total)
3 tbsp extra-virgin olive oil
1 tsp kosher salt, plus more to taste
1/2 tsp freshly ground black pepper, plus extra for topping
1/4–1/2 cup reserved hot pasta cooking water (as needed)
Olive oil or nonstick spray, for greasing the baking dish
Directions
Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch glass casserole dish with olive oil or nonstick spray and set aside.
Bring a large pot of well-salted water to a boil. Add the pasta and cook until just shy of al dente, 1–2 minutes less than the package directions, since it will finish in the oven.
While the pasta cooks, stir together the ricotta, lemon zest, lemon juice (start with 1/4 cup), olive oil, salt, and pepper in a large mixing bowl. The mixture will be thick and creamy.
Before draining the pasta, scoop out about 1 cup of the hot pasta cooking water and set aside. Drain the pasta well.
Add the hot drained pasta to the bowl with the lemon ricotta mixture. Toss to coat, drizzling in 1/4–1/2 cup of the reserved pasta water, a little at a time, until the sauce looks glossy and clings to the noodles. Taste and adjust salt and pepper if needed.
Transfer the coated pasta to the prepared glass casserole dish, spreading it into an even layer. Sprinkle a little extra black pepper over the top for that speckled look.
Bake, uncovered, for 18–22 minutes, or until the pasta is heated through, the edges are just starting to turn golden, and the sauce looks slightly set but still creamy. Don’t overbake or it will dry out.
Let the casserole rest for 5–10 minutes before serving so it can thicken slightly. Bring the dish straight to the table or potluck, and use a large serving spoon to scoop out creamy portions, making sure to grab some of the saucy goodness from the bottom of the dish.
Variations & Tips
To keep this true to the 4-ingredient idea for potlucks, I mentally group everything as pasta, ricotta, lemon, and olive oil, with salt and pepper as pantry basics. If you want to dress it up a bit for family dinners, you can stir in a handful of grated Parmesan or Pecorino, or scatter some over the top before baking for a lightly browned, cheesy crust. For more protein, fold in shredded rotisserie chicken or drained canned chickpeas before baking. If you like extra brightness, add another tablespoon or two of lemon juice or a sprinkle of fresh parsley or basil right before serving. Whole-wheat or gluten-free pasta both work; just be sure not to overbake so the texture stays pleasant. For make-ahead prep, you can assemble the pasta and sauce in the dish, cover, and refrigerate up to 12 hours; add a splash of water or milk before baking if it looks dry, and increase bake time by about 5–10 minutes. Food safety tips: Keep the ricotta refrigerated until you’re ready to mix, and don’t leave the baked pasta out at room temperature for more than 2 hours (or 1 hour if it’s very hot outside at a summer potluck). If you’re transporting it, keep it covered and insulated, and refrigerate leftovers promptly; reheat thoroughly until steaming hot before eating.
