Unsalted butter, for greasing
2 3/4 cups all-purpose flour, plus more for dusting
1 cup pecan pieces
3 ripe bananas, chopped
1/2 cup finely chopped fresh pineapple
1 teaspoon ground cinnamon
1/2 teaspoon freshly grated nutmeg
1/2 teaspoon ground ginger
1 1/4 teaspoons baking soda
1/2 teaspoon salt
3 large eggs, at room temperature
1 3/4 cups granulated sugar
1 cup vegetable oil
For the frosting:
2 packages cream cheese (8 ounces each), at room temperature
12 tablespoons unsalted butter, cubed, at room temperature
2 cups confectioners' sugar
1 tablespoon finely grated lemon zest
1 teaspoon vanilla extract