Preheat oven to 425℉. Line a half sheet pan (about 13”x17”) with parchment paper, spray paper and exposed pan sides with non stick cooking spray. Slice banana and strawberries.
In a large bowl, whisk together the flour, sugar, baking powder, and salt. Create a well in the center and add the eggs, vanilla, melted butter, and buttermilk. Whisk until barely combined, you want it lumpy. Do not overmix.
Pour and spread batter into prepared sheet pan. Place one of each type of topping onto ¼ of the pan, dotting the top with the toppings. Do not mix in.
Bake for 15-20 minutes, or until a toothpick inserted the center comes out clean. Slice and serve immediately with maple syrup.