1 (14 oz.) pkg. Mac and Cheese deluxe
1 c. milk
1/2 c. sour cream
1/3 c. shredded mild cheddar cheese

Prepare mac and cheese as directed. Add milk and sour cream. Mix well. Spoon into 1 1/2-quart casserole. Top with cheese. Bake at 400 degrees for 20 minutes until cheese is lightly brown.