Cook the Pasta:
Bring a large pot of salted water to a boil and cook the pasta according to the package directions. Drain the pasta, reserving about 1/2 cup of pasta water. Set aside.
Make the Pesto:
In a food processor or blender, combine the basil, parsley, mint, garlic, pine nuts, Parmesan, and lemon zest.
With the food processor running, slowly stream in the olive oil until the pesto is smooth and creamy. Add salt and pepper to taste.
Combine Pasta and Pesto:
In a large mixing bowl, toss the cooked pasta with the pesto sauce, adding a bit of the reserved pasta water if needed to help coat the pasta evenly.
Taste and adjust the seasoning with salt, pepper, or more lemon zest, if desired.
Serve:
Plate the pasta and top with extra Parmesan cheese, if desired. Serve warm or chilled for a refreshing summer dish.