My college roommate and I first ate these meaty sandwiches at the Iowa State Fair. After a little experimenting, we re-created the recipe. We ate the subs often because they were fast to fix between classes and didn't break our next-to-nothing grocery budget. —Christi Ross, Mill Creek, Oklahoma
Cut bread in half lengthwise; carefully hollow out top and bottom of loaf, leaving a 1-in. shell. Cube removed bread. In a large bowl, beat the eggs, milk, pepper and salt. Add bread cubes and toss to coat.
In a skillet over medium heat, cook sausage and onion until the meat is no longer pink; drain. Add to the bread mixture. Spoon filling into bread shells; sprinkle with cheese. Wrap each in foil. Bake at 400° for 20-25 minutes or until cheese is melted. Cut into serving-size slices.