I've been tweaking this through a few batches and this is what seems to work.
3 cups rolled oats
1/2 cup brown sugar
1/2 cup butter
1/3 cup honey
Combine oats and brown sugar. Melt butter, stir in honey. Combine with dry ingredients and stir until oats are coated. Spread evenly on a cookie sheet with foil. Bake at 325F for 13-20 minutes (until just lighter than golden brown), stirring every 5-7 minutes.