Pasta should be cooked as directed on the package (be sure to salt the water), drained, and left aside. Don't forget to set aside two tablespoons of water for later.
Add the cottage cheese, milk, nutritional yeast, cheese, paprika, black pepper, garlic powder, and onion powder to a blender and process until smooth.
Combine the cornstarch with the pasta water that was set aside in a small bowl.
In a small skillet, add the cheese sauce and boil it to a simmer over medium heat. Stir the cornstarch and water mixture into the sauce. Simmer for approximately five minutes, or until the sauce starts to thicken. Keep stirring to prevent the sauce from burning (see the notes below for recommendations!). If necessary, add more cheese and stir!
Pasta should be added straight to the sauce, stirred, and then eaten!