Hummingbird Cake

Name: Hummingbird Cake
Prep time: 20 min
Cook time: 25 min
Total time: 45 min
Cuisine: American
Ingredients: 3 ripe bananas (mashed); 1 cup crushed pineapple (drained); 2 cups all-purpose flour; 1 1/2 cups granulated sugar; 1 teaspoon ground cinnamon; 1 teaspoon baking soda; 1/2 teaspoon salt; 3 large eggs (beaten); 1/2 cup vegetable oil; 1 teaspoon vanilla extract; 1 cup chopped pecans (optional); 8 ounces cream cheese (softened); 1/4 cup butter (softened); 3 cups powdered sugar (sifted); 1 teaspoon vanilla extract (for frosting)