1
: Preheat oven to 350F (180C). Grease a 9” x 13” (3L) baking dish.
2
: Bring a large pot of water to a boil. Cook pasta according to package directions. Drain and cool slightly.
3
: Combine ingredients for filling and gently spoon into pasta shells. Place in prepared baking dish.
4
: Heat butter in a large saucepan. Cook onion and garlic for 2-3 minutes, until tender. Add flour, cook for 3 minutes stirring often. Add evaporated milk and bring to a boil. Stir in tomato sauce and cook for 3 minutes, stirring constantly. Pour over stuffed pasta shells.
5
: Bake in preheated oven 45-50 minutes until bubbling. Sprinkle with parmesan and basil.