Here is a sweet, but very healthy recipe for pineapple carrot muffins. There is very little sugar, just 1/4 cup of honey for the entire batch. The sweetness comes from the carrots and from the addition of crushed pineapple.
Combine the honey, oil and beaten eggs in a medium bowl and stir to mix well. Combine the flour, baking soda, baking powder and cinnamon in a separate bowl and mix together well.
Add the dry ingredients to the liquid ingredients and stir just until blended. Add vanilla, grated carrots, pineapple and walnuts. Stir until just blended. Line muffin cups with paper liners and fill 2/3 full.