1 lb. Pappardelle’s Garlic Chive Sea Shells
2-1/2 tablespoons butter
1/8 cup all-purpose flour
2 cups milk
1 teaspoon sea salt
1 teaspoon ground mustard
1/4 cup Parmesan cheese, grated
1/4 cup gruyere cheese, grated
1/4 cup emmental Swiss cheese, grated
1/4 cup cheddar cheese, grated
1/4 baguette, ripped into small pieces
1 garlic clove, minced
1 tablespoon extra virgin olive oil
1/4 cup reserved cheddar cheese, grated