- 1 (12 ounce) package uncooked penne or medium tube pasta
- 3 tablespoons butter
- 3 tablespoons all-purpose flour
- 3 cups milk
- 1 pound shredded white Cheddar cheese
- 1/2 teaspoon salt
- 1/2 teaspoon ground mustard
- 1/4 teaspoon white pepper
- 1 cup chopped seeded tomatoes
- Cook pasta according to package directions. Meanwhile, in a Dutch oven, melt butter over medium heat. Stir in flour until smooth; gradually add the milk. Bring to a boil; cook and stir for 2 minutes or until thickened.
- Reduce heat to medium. Stir in the cheese, salt, mustard and pepper. Cook and stir until cheese is melted. Drain pasta; stir into cheese sauce. Cook and stir for 3 minutes or until heated through. Stir in tomatoes just until combined.