Banana Bread Snack Cakes

Ingredients 1 1/2 cups all-purpose flour 1 teaspoon baking soda 1/2 teaspoon salt 1/2 teaspoon ground cinnamon 1/4 teaspoon ground nutmeg 1/2 cup unsalted butter, melted 1 cup granulated sugar 2 large eggs 1 teaspoon vanilla extract 3 ripe bananas, mashed