Frosted Banana Bars

I recently performed the role of Roger in a production of The Producers, and my family came to see the show. We had quite a large group! Between friends and family, I think about 35 people came to see me in the show that night. I can't even put into words how much that means to me!
 Thanx again guys!
Since it was right around Carly's birthday, we all went back to my sister Cathy's house for coffee and cake after the show. Cathy made Gregg's Very Most Favorite Can't Resist Chocolate Chip Sour Cream Cake, and Casey made these delicious banana bars. I love anything banana, so I knew I'd LOVE them. Of course I couldn't stop eating them. SO DELISH!  Seriously, banana bars with cream cheese icing? What's not to love? Thanx to Casey for making them, and thanx to my Jeanie for giving Casey the recipe and then passing it on to me!
If you like bananas, then this one has your name all over it!

1 stick (1/2 cup) butter, softened
1-1/2 cups sugar
2 eggs
1 cup sour cream
1 tsp. vanilla
2 cups flour
1 tsp. baking soda
1/4 tsp salt
2 cups ripe mashed bananas

Frosting:
8 oz. cream cheese
1 stick (1/2 cup) butter, softened
2 tsp vanilla
2 (or 4) cups 10x sugar

Heat oven to 350F.
Mix all ingredients together and spread in sheet pan.
Bake for 20-25 minutes, or until it springs back when lightly tapped.
Frost and refrigerate.

Tips:
I'd use a jelly roll pan for this one. Also, it's probably not a bad idea to grease and flour the pan, or spray it with baking spray (which is a nonstick spray with added flour, specifically for baking).
Be sure that it's well chilled before you slice into bars. A, I think it tastes better when the bars are chilled, and B, I think it makes the cutting easier if the cream cheese frosting has set up a bit.