In a large bowl, whisk together the eggs and sugars. Add the yogurt, bananas, and melted butter, and mix well.
In a medium bowl, combine the flour, salt, baking powder, baking soda, cinnamon, and nutmeg. Mix well.
Add the dry ingredients to the wet ingredients and mix until just combined. Fold in the walnuts until evenly incorporated.
Generously coat a large loaf pan with nonstick spray. Fill the pan with half of the batter and spread evenly. Combine the cinnamon and sugar in a small bowl and sprinkle half of the mixture over the batter in an even layer. Top evenly with the remaining batter and sprinkle the rest of the cinnamon sugar mixture on top. Use a toothpick to make a few swirls in the batter.
Bake for 35–45 minutes, or until golden brown and a toothpick inserted into the middle of the bread comes out clean.
Let cool for 15 minutes before removing from the pan and slicing.
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These meals will make your weeknights way simpler. (And tastier!)