Wash the cauliflower, cut into florets and boil in salted water until it comes off the fork.
Put the cauliflower florets in a blender together with the yeast flakes, salt, pepper, garlic powder, onion powder, miso, olive oil and vegetable drink (250-300 ml depending on the size of the cauliflower). The consistency should not be too liquid, but very smooth and creamy.
Heat a little oil in a medium skillet and sauté the planted.chicken until it turns golden brown. Season with salt and pepper to taste, if needed. Meanwhile, cook the rigatoni in salted water according to the package directions until al dente.
Mix the rigatoni and the cauliflower sauce together, then planted.chicken the planted.chicken . Add additional salt and pepper as needed.
optional: chop the parsley and sprinkle over the Rigatoni Alfredo together with some vegan Parmesan.