Bring a large pot of water to a boil and add the chopped potatoes, onion and carrots (you will want to make sure the veggies are all chopped to about the same size so they cook evenly).
Cook for approx. 10 minutes till tender - exact cooking time will vary based on the size. Remove veg with slotted spoon and add to blender
Remove a cup of the cooking water a side aside - return the water to boil to cook the pasta.
Once water is boiling - cook the pasta according to package directions (if using brown rice pasta - it is best rinsed after cooked).
Meanwhile - add the other sauce ingredients to the blender with the cooked veg (cashews, coconut milk, nutritional yeast, lemon juice, garlic and start with ¾ cup of the cooking water).
Blend until smooth - if too thick add more water. Season with salt and pepper.
Pour as much sauce as desired over the cooked pasta (there may be extra sauce which can be used for so many other wonderful things!)
Top with toasted panko bread crumbs and enjoy!