Go to supermarket and just get 1) pre-made pie crust (I prefer short bread one), 2) 1 can of dolce de leche 3) bunches of bananas 4) heavy whipping cream
Spread the dolce de leche, arrange sliced bananas, then top whipped cream. That's it.
Even no need to add sugar to the cream - sweetness from the dolce de leche and bananas are plenty enough!
Made this twice for potlucks and it was a hit.