Cheesy Spaghetti

Cook spaghetti according to box instructions. Drain in colander.

In large saucepan over medium low heat, melt butter. Whisk in flour and cook until smooth and lightly bubbling, about 2 minutes. Slowly whisk in milk and Dijon mustard. Continue cooking over low heat until thickened, stirring frequently, approximately 5 minutes.

Add cream cheese and continue cooking over low heat until melted, stirring often. Slowly add both cheddars until melted, whisking frequently. Combine with cooked pasta and adjust seasoning to taste. Serve immediately.