This amazing recipe I founded at http://eatthisup.com/ and I love it and my kids too. It's so interesting making this sandwiches with your kids. Kids are crazy about it. It's perfect for breakfast yummmy, enjoy :)
Ingredients:
4 slices Sourdough (or other dense bread)
1½ cups leftover Macaroni & Cheese
8 slices American or Cheddar Cheese
2 tbsp Butter