Bring a large pot of salted water to a boil and cook the pasta according to package instructions. Make sure to cook it until al dente for the best texture. Reserve about 1/4 cup of pasta water before draining.
In a mixing bowl, combine ricotta cheese, lemon zest, lemon juice, and grated Parmesan. Stir until smooth and creamy. Season lightly with salt and pepper to enhance the flavor.
Heat olive oil in a pan over medium heat and sauté the minced garlic until fragrant. Be careful not to burn it, as burnt garlic can turn bitter. This step builds a flavorful base.
Add the drained pasta to the skillet and toss it with the garlic oil. Remove from heat and mix in the ricotta mixture gently. Add reserved pasta water gradually to loosen the sauce.
Stir in fresh arugula until it slightly wilts from the heat of the pasta. Toss everything together until well combined. Taste and adjust seasoning before serving warm.