Here's a healthy vegan alternative to the kind of mac and cheese mix that comes in a box. This one's based on cashews, nutritional yeast, and seasonings.
Add all of the ingredients to a food processor and process until a powder is formed. There should not be any discernible chunks or large granules of cashews, so this may take 3 to 4 minutes of processing.
Store this in a jar or portion out into 1⁄3-cup increments and put in ziplock bags and store in the pantry for a month or two or in the refrigerator for up to 6 months.