Cook the fettuccine according to the package directions.
In a large skillet, saute mushrooms in olive oil over medium-high heat. Season with salt and pepper and cook until they are soft and lightly browned.
Blanch and shock the kale so that it stays bright green. To do this, add the chopped kale into a pot of boiling salted water and stir for 15 seconds. Immediately drain and plunge the kale into ice water. Let it chill, then drain again.
Toss the fettuccine with the mushrooms, kale, sun-dried tomatoes, and Almond Alfredo Sauce. Garnish with chopped fresh parsley and serve hot.
For Almond Alfredo Sauce:
Heat about 4 cups water in a medium saucepot until boiling. Add the almonds to the boiling water and cook for 5 minutes. Drain the almonds, and with your fingers, peel the almonds and discard the skins.
In a large skillet, saute the onions with oil, salt, and pepper until soft and translucent. Add the garlic and let cook a few more minutes. Remove from heat and set aside.
Blend the skinless boiled almonds with 2 cups water until smooth, then strain through a colander lined with cheesecloth (a paper towel also works) set over a bowl or use a fine mesh sieve. Discard the solids. Return the almond milk to the blender and process with the onion mixture and miso. Season with salt and pepper, to taste. Before use, heat the sauce over a very low flame until hot.