They will all be delicious. She made 2 pecan, a peanut butter chocolate with Oreo crust, triple berry, apple, banofee with graham cracker crust.
If your gluten free pies don’t taste good you are doing something wrong. Pie crust taste fine gluten free even if graham cracker or Oreo crust. There are some things I don’t eat gluten free, but pie is not one of them.