I made a multigrain bread a weekend or two ago:
I made a porridge of grains the night before. Oats, millet, quinoa, polenta, and anything else I could find.
I added all of that to a simple dough. Slightly sweetened with honey, softened with some milk and oil
Oh yeah, and buckwheat. Mental note:I really detest buckwheat. At least in a loaf like this. Much too strong a flavor.