In a large pot, bring Fat-Free Evaporated Milk (2 can), Campbell's® Condensed Healthy Request® Cheddar Cheese Soup (2 can), Water (2 1/2 cup), Salt and Pepper (to taste), Dry Mustard (1 teaspoon), and Cayenne Pepper (1/8 teaspoon), to a simmer.
Slowly add Shredded Reduced-Fat Sharp Cheddar Cheese (2 cup) and Shredded Reduced Fat Monterey Jack Cheese (2 cup), until melted and smooth. Add uncooked Vegetable Rotini (1 pound), to a slow cooker and cover with cheese sauce. Stir well.
Cover and cook for two hours on high. Stir occasionally. After two hours, gently stir pasta and add water as needed to loosen. Season with Salt and Pepper (to taste).
Serve warm in bowls.