Frosted Banana Bars

1/2 cup butter, softened
2 cups sugar
3 large eggs
1-1/2 cups mashed ripe bananas (about 3 medium)
1 tsp vanilla extract
2 cups all-purpose flour
1 tsp baking soda
Dash salt

Preheat oven to 350 degrees.
In a large bowl, cream butter and sugar until light and fluffy. Beat in the eggs, bananas and vanilla. Combine the flour, baking soda and salt; stir into creamed mixture just until blended.Transfer to a greased 15x10x1-in. baking pan. Bake at 350° for 20-25 minutes or until a toothpick inserted near the center comes out clean.
Cool in pan on a wire rack.
1 package (8 ounces) cream cheese, softened
1/2 cup butter, softened
4 cups confectioners' sugar
2 tsp vanilla
For frosting, in a small bowl, beat cream cheese and butter until fluffy. Add confectioners' sugar and vanilla; beat until smooth. Frost bars. 
Yield: 3 dozen