Preheat oven to 350 degrees. Line a loaf pan with parchment paper. Set aside.
In a small bowl, whisk together the flour and baking soda. Set aside.
In the bowl of a standing mixer, cream the butter and sugars at medium speed for 2 minutes.
Add the eggs and vanilla bean paste and continue beating for another minute.
Reduce mixer speed to low, add the flour and baking soda and mix until combined, scraping down the sides as needed.
Add the mashed bananas, blueberries, yogurt, lime zest and lime juice and mix until just combined.
Pour the batter into the prepared loaf pan. Bake for 50 - 55 minutes or until a toothpick inserted into the middle comes out clean.