I have tried different recipes for granola bars (some that start with granola and some that don't), but they usually fall apart on me. These are from a 1992 Rod and Staff newsletter (that I found in a pile of stuff) and they turned out pretty solid and close to what I think of as granola bars. As I noted in the recipe, I didn't make them as thin as recommended, but I like the way they turned out anyway.
Granola Bars (by Ella Mae Landis)
Combine dry ingredients:
4 cups oatmeal
1 cup wheat germ
1 cup whole wheat flour
1 cup sunflower seeds or nuts
1 cup coconut
Mix and add to dry ingredients:
2/3 cup honey or brown sugar (I used honey)
2/3 cup oil
1/3 cup milk
1 tsp. vanilla
Mix well and press mixture into two well-greased 10x15" cookie sheets (I pressed it all into one 11x15" glass pan instead). Bake at 350 degrees "until nicely browned." (There is no time given in the recipe but I took my large pan out after 20 minutes, when the edges were just beginning to brown.) Cut immediately into bars (I used a pizza wheel). Remove from pan when cool.