½ cup
freshly grated Parmesan cheese, plus more for serving
¾ cup
ricotta cheese, for serving
Freshly cracked black pepper, for serving
Method
Bring a large pot of salted water to a boil over high heat. Add the pasta and cook, according to directions, to al dente. Reserve ½ cup of the liquid and drain the pasta.
Meanwhile, heat 2 tablespoons of olive oil in a second large pot over medium heat. Once the oil is glistening, add the shallot and cook, stirring occasionally, until softened, about 4 minutes. Add the garlic and cook, stirring until fragrant, about another minute. Add the spinach and salt and cook, stirring, until wilted, about 5 minutes more.
Transfer the spinach mixture to the base of a blender. Add the basil, heavy cream, remaining 2 tablespoons olive oil, lemon zest, lemon juice, and parmesan. Blend until smooth, about 2 minutes. Season with salt to taste.
Return the sauce to the pot and bring to a simmer over medium heat. Stir in the cooked pasta along with the reserved cooking liquid, 2 tablespoons at a time, until the sauce coats the pasta.
Divide the pasta among 4 bowls. Top with a dollop of ricotta, parmesan, and black pepper.