Start by blanching the kale. Bring a pot of salted water to a boil. Destem the kale with your hands. Off to the side, add the cashews in boiling water and set aside.
Add the kale to the boiling water. Use tongs to ensure each piece is getting cooked. Prep a bowl of ice water nearby.
After about 3-4 minutes, use your tongs to transfer the kale to the ice water. Wait no more than 10 seconds before you pour out the kale ice water in a colander and use your tongs to press out excess water.
While the kale is cooling down a bit, bring another pot of salted water to a boil. Once boiling, cook the pasta.
Meanwhile, drain the cashews and add them to a blender along with the kale, garlic, nutritional yeast, and water. Blend until smooth.
Once the pasta is tender, drain and return to the pot. Toss in the kale sauce. Divide the pasta between 2 plates and top with 2 tbsp vegan ricotta each, flaky sea salt, pepper, and lemon zest.