Layered Banana Split Dessert

unsalted butter , softened at room temperature

all purpose flour

finely minced pecans

( 8 ounce ) package of cream cheese , softened at room temperature

powdered sugar

Cool Whip or homemade whipped cream

bananas , sliced

( 20 ounce ) can of crushed pineapple , very well drained

( 21 ounce ) can of strawberry or cherry pie filling

to 3 cups of Cool Whip or homemade whipped cream , plus extra for dollops as garnish, if desired

Chocolate syrup , for garnish

Chopped nuts , for garnish

Maraschino cherries , with the stem, for garnish