Preheat oven to 350 degrees F. and prepare an 8x4" loaf pan* with a natural cooking spray.Whisk all dry ingredients, flour through all spice, in a medium bowl and set aside.*Use a stand or hand-held mixer to beat eggs on medium speed for about 30 seconds.Mix in vanilla, banana and honey until combined.Slowly add in the flour mixture and mix on low speed until just combined. Gently fold in rhubarb. Pour batter into prepared loaf pan. Bake for 50-55 minutes, or until loaf is golden and a toothpick comes out clean.Cool bread in pan for 10 minutes. Loosen sides with a knife and remove from pan.