Spent Grain Bread or Treberbrot (the German word for spent grain is Teber) is a hearty bread that is made with the addition of spent grain from the brewing process. The spent grain adds some sweetness, texture and a lot of fiber to the bread. Here is a sample recipe for a small loaf of Spent Grain Bread. Basically any hearty bread receipe can be made into Spent Grain bread by adding some portion of spent grain. But when doing so please account for the amount of liquid that is alteady in the spent grains as breads doughs are fairly sensitive to the solid/water ratio.
If you haven't made bread before you may want to watch the Food Network's Good Eats episode "Dr Strangeloaf" where Alton Brown explains the basics of bread making.
The recipe: