Preheat oven to 350F. Place your oven rack in the center of your oven. Spray 6-mini loaf pans or a 9x5x3 loaf pan.
In medium bowl, combine flour baking. soda, baking powder, salt, cinnamon & nutmeg. Mix well.
In a lg mixing bowl beat, sugar, oil. eggs and vanilla till well blended. Add in bananas & blueberries. Add dry ingredients and stir just until blended.
Pour batter in to prepared pans. Bake until a toothpick comes out clean while checking the center. About 45 minutes for mini loaves and 1 hr for reg. loaf. Remove and allow to cool in pan about 1 hr. (Note- for mini pans I invert at 10 minutes and let cool on wire rack)