Whole Grain Banana Pecan Muffins

I've really been slacking on the recipes lately! Here's a new recipe I tried that I really like. Even Tyler (who doesn't usually like my healthier recipes) will eat these!
Whole Grain Banana Pecan Muffins

3/4 c. all-purpose flour
1 1/4 c. whole wheat flour
3/4 tsp. baking soda
1/2 tsp. salt
1 tsp. cinnamon
3/4 c. sugar
1/4 c. honey (you can substitute 1/4 c. sugar here if you prefer)
1/4 c. butter, softened
2 large eggs
1 1/2 c. mashed very ripe banana (about 2 large bananas or 3 smaller ones)
1/3 c. low-fat sour cream or plain yogurt
1 tsp. vanilla extract
1/4 c. pecans, chopped
1/4 c. packed brown sugar

Preheat the oven to 350. Line a muffin tin with liners--you'll need about 15-16.

Whisk together the flours, baking soda, salt, and cinnamon. Set aside. In a large mixing bowl, cream together the sugar, honey (if using), and butter. Add each egg in one at a time, combining completely after each addition but not over-mixing. Add the mashed banana, yogurt, and vanilla. Slowly add in the flour mixture and beat until just combined (don't over-mix).

Divide the batter evenly (so the cups are about 2/3 full) among 15-16 muffin tins. Combine the chopped pecans and brown sugar and sprinkle them on top of the batter. Bake for 23-28 minutes or until a toothpick inserted into the center of a muffin comes out clean. Remove from oven and allow to cool for 5-10 minutes and then transfer to a cooling rack and allow to finish cooling.