Banana Cream Cheesecake

1 (18 1/4 ounce) package white cake mix, divided
4 eggs, divided
3 tablespoons oil
2/3 cup brown sugar, packed, divided
2 bananas, sliced
2 (8 ounce) packages cream cheese, Philadelphia, Softened
2 tablespoons lemon juice
1 1/2 cups milk
1 1/2 cups whipped topping, Cool Whip, thawed
Preheat oven to 300 degrees. Reserve 1 cup of the dry cake mix. Mix remaining cake mix with 1 egg, oil and 1/3 cup sugar with mixer (mixture will be crumbly). Press onto bottom and 1 inch up sides of a greased 13 x 9-inch baking pan; top with bananas.
Beat cream cheese and remaining sugar with mixer. Add reserved cake mix, remaining eggs and lemon juice; beat 1 minute. Blend in milk (batter will be thin). Pour into crust.
Bake 45 to 50 minutes or until center is almost set. Cool. Refrigerate 4 hours. Top with whipped topping, Refrigerate leftovers.