Preheat the oven to 350 degrees. Coat a muffin tin with cooking spray. Flour the pan, shaking off the excess.
In a large bowl, mash the bananas. Add the sugar and butter and mix with an electric mixer until smooth. Add the eggs and vanilla and mix on low about 1 minute.
Sift the flour, baking powder, baking soda, and salt onto a square of wax paper (or mix in a bowl). Add to the banana mixture all at once. Stir with a wooden spoon just until combined.
Place berries in a seperate bowl. Add a spoonful of kamut, and mix together. Make sure that the flour is lightly dusted on all of the blueberries. Lightly mix in to batter.
Scrape the batter into the prepared pan.
In a bowl, mix all streuesel ingredients together. Once combined, sprinkle on top of each muffin. Bake in the oven for 20 minutes.