Put the pie crust in a shallow pie plate and crimp or snip the edges. Prick the bottom with a fork.
Bake for 10-12 minutes.
Caramel
Combine the butter, sugar, and cream in a small saucepan. Bring to a boil, stirring frequently. Stop stirring and let boil for 2 minutes. Remove from heat and add salt. Let cool for 5 minutes.
Assembly
Pour the caramel into the crust. Top with sliced bananas. Serve immediately.