01 - Bring a large pot of salted water to a rolling boil. Add the spinach pasta and cook until al dente, following package directions. Reserve ½ cup of pasta water before draining. United the drained pasta with 1 tablespoon of olive oil and set aside.
02 - In a food processor, combine the spinach, basil, pine nuts, garlic cloves, Parmesan cheese, salt, black pepper, and lemon juice. Pulse until finely minced. While the processor is running, gradually stream in the extra virgin olive oil until a smooth and vibrant green pesto is achieved. Adjust seasoning as necessary.
03 - In a small mixing bowl, whisk together the ricotta cheese, milk or cream, and a pinch of salt until smooth and well combined, achieving a swirlable consistency.
04 - Toss the drained pasta with the prepared ghoulish green pesto. Gradually add the reserved pasta water, a little at a time, until the sauce evenly coats the pasta and develops a silky texture.
05 - Divide the sauced pasta among serving bowls. Artfully dollop or swirl the ricotta mixture on top to create a ghostly visual. Garnish with additional grated Parmesan, toasted pine nuts, and fresh basil leaves.
06 - Serve immediately while warm to best appreciate the texture and vibrant color of the dish.