Soften the raw, unsalted cashews either by soaking overnight, or the easier method, allowing them to sit in a small pot of boiling water for about 10 minutes.
In a medium-heat pan, saute (diced) onions for about 5 minutes until translucent and lightly browned. Add in the diced tomatoes and cook for another 3 mins.
Boil a pot of water and cook pasta per package instructions.
In a blender, blend all of the ingredients listed under the Pasta Sauce until well-mixed and smooth.
Pre-heat oven to 350F (177 C).
In a medium-heat pan, saute the sliced mushrooms until the liquid has been cooked out of them, 5 - 10 minutes. Add in the other veggies and cook for another 10 minutes until most of the liquid has been cooked out.
In a bowl, mix together the pasta, chick'n, veggies, and sauce. Put in a Casserole Dish.