I didn't measure anything so just add until it tastes good.
Make a roux. Add milk and a brick of cream cheese. Stir continuously with a whisk. Add salt and pepper to taste. Then add in a package of shredded cheddar cheese. I used bow tie noodles and combined them with the sauce. I added more shredded cheese to the top and roasted vegetable ritz crackers and french's fried onion rings mixed together, crumbled and combined with melted butter for the crunchy topping. Bake at 350 degrees for 15 minutes or until top cheese is melted and everything is bubbly! Delicious!