Bring a large pot of salted water to a boil and cook pasta per package directions. Drain the pasta.
While the pasta is cooking prepare the cheese sauce. In a medium saucepan melt the butter and then whisk in the flour, stirring until a paste forms and cook for about 1 minute. Slowly add in the milk while whisking continuously and cook for 4-5 minutes or until the sauce thickens.
Reduce the heat to low and stir in dijon mustard and shredded cheeses, stirring until all the cheese has melted. Add salt and pepper to taste.
Stir in your cooked pasta ensuring all the pasta is thoroughly coated. Serve as desired.
Keyword 30 minutes or less, easy pasta, pasta recipe