1. Preheat oven to 350°F.
2. Place cheese onto 6 pieces of bread.
3. Divide pasta and spread over cheese and bread. Top with tomato slices and remaining bread.
4. Lightly butter both sides of bread. Place bread onto a baking pan.
5. Bake 20 minutes turn over and continue to bake 20 additional minutes or until golden brown on each side and mixture is heat through