11/3 cups semisweet chocolate chips, divided
1 cup chopped pecansInstructions
Preheat oven to 350º. Lightly spray the bottom only of a 13-x-9-inch pan with nonstick cooking spray. Beat cake mix, buttermilk, water, 1/2 cup oil, and eggs in large bowl on low speed for one minute, scraping bowl as needed. Pour half the batter into pan. Bake 25 minutes.
Melt caramels with evaporated milk in saucepan over medium heat, stirring frequently until smooth. Stir in pecans.
Sprinkle warm cake evenly with bananas; pour caramel mixture over top. Sprinkle with 1 cup chocolate chips. Carefully spread remaining batter over top. Bake another 30 minutes.