Preheat the oven to 350 degrees. Line an 11x7-inch baking pan with foil; spray foil with cooking spray.
Spread the oats, wheat germ and nuts if using onto a half-sheet pan. Place in the oven and toast for 10-15 minutes, stirring occasionally; remove from oven.
In the meantime, combine the peanut butter, honey, brown sugar and salt in a medium saucepan and place over medium heat. Cook until the brown sugar has completely dissolved and mixture is combined.
Add the oat mixture to the liquid mixture; add the dried fruit if using, and stir to combine. Turn mixture out into the prepared baking pan and press down, evenly distributing the mixture. Bake for 20-25 minutes, until golden brown. Remove from the oven and allow to cool completely. Cut into 16 pieces and store in an airtight container for up to a week.
2009, 2010, 2014