01 -
Preheat the oven to 375°F (190°C). Grease a 2-quart or 9x9-inch baking dish.
02 -
In a bowl, combine the brown sugar, flour, and softened butter using a fork until crumbly. Stir in the oats and chopped pecans. Set aside.
03 -
In a separate bowl, whisk together flour, sugar, and milk until just combined. Stir in the melted butter. Pour this mixture into the prepared baking dish.
04 -
Arrange the banana slices evenly over the batter.
05 -
Sprinkle the streusel topping evenly over the bananas.
06 -
Bake for 45 to 50 minutes, or until the top is golden brown and the filling is set.
07 -
Serve warm. For extra flavor, top with vanilla ice cream and additional banana slices if desired.