Preheat oven to 350 degrees F and place rack in the middle of the oven. Prepare a loaf pan with cooking spray.

In medium bowl sprinkle instant yeast onto the warm water and stir until the yeast dissolves. Stir in honey and set aside for a few minuted until the yeast blooms and swells, about 5-10 minutes.

In a large mixing bowl, mix all purpose flour, wheat flower, oats and salt. Add the wet mixture to the dry mixture and mix well.

Brush a loaf pan with melted butter, or room temperature butter, turn dough into tin, cover with a damp cloth and let dough rise in a warm place for 30 minutes.

Bake bread for 35-40 minutes, until golden brown and pulling away from the sides of the pan. Remove from oven, turn bread out onto a wire rack.