Melissa Clark's Creamy Corn Pasta {Vegan Version}

Bring a large pot of well-salted water with the corn on the cob to a boil. Cook pasta for up to 1 minute before being al dente, according to package directions. Drain and reserve ½ cup of pasta water.
Meanwhile, heat oil in a large sauté pan over medium heat; add the garlic, green onion whites, and a pinch of salt and cook until tender, 3 minutes. Add ¼ cup of water and all but ½ cup of corn; simmer until corn is heated through and almost tender, 3 to 5 minutes. Add ¼ teaspoon of salt and ¼ teaspoon of pepper, transfer to a blender and puree until smooth, adding a little more water if necessary to achieve a thick but pourable texture.
Heat the same pan over high heat. Add the butter and let it melt. Add the rest of the reserved corn kernels and cook until tender, 1 to 2 minutes. (Kernels may burst; put a fine rack on top of the pan if you have one.) Add the corn mash and cook for 30 seconds to heat through and combine the flavors.
Reduce the heat to medium. Add the pasta and half of the cooking water reserved for the pasta, stirring to coat. Cook for 1 minute, then add a little more pasta cooking water if the mixture seems too thick. Stir in ¼ cup of the green onion greens, vegan Parmesan, herbs, red pepper flakes, ¼ teaspoon of salt, and ¼ teaspoon of pepper.
Sprinkle with fresh lemon juice to taste. Transfer to hot pasta bowls and garnish with more green onions, herbs, a drizzle of olive oil, and black pepper.