Bring a large pot of salted water to a boil and cook the pasta according to the package directions until al dente.
While the pasta cooks, prepare the ricotta sauce. In a medium bowl, combine ricotta cheese, olive oil, Parmesan cheese, garlic, lemon zest, and lemon juice.
Add 1/4 teaspoon salt and a generous pinch of black pepper. Stir until smooth and creamy. Taste and adjust seasoning if needed.
During the final minute of cooking, reserve 1/2 cup of the pasta cooking water.
Add the spinach to the boiling pasta and stir well until the leaves are submerged.
After one minute, drain the pasta and spinach and return them to the pot.
Add the ricotta mixture and a portion of the reserved pasta water. Toss thoroughly until the Easy Lemon Ricotta Pasta is evenly coated.
Add additional cooking water as needed until the sauce becomes silky and creamy.
Serve immediately with extra Parmesan cheese, a drizzle of olive oil, and lemon wedges if desired.
Garnish with a pinch of red pepper flakes for a little heat and enjoy.