Thaw the frozen crust according to package instructions. Roll out flat on a lightly floured surface. Carefully transfer to a lined baking sheet.
Preheat oven to 425℉.
In a large bowl, gently mix the berries, brown sugar, vanilla, flour + lemon juice.
Pile the berries onto the crust, leaving a 2" space around the pie. Fold the crust over the berries in panels, layering the panels around the crust.
Brush the crust with butter. Sprinkle the raw sugar on the folded crust.
Bake for 25 minutes or until the crust becomes golden and berries bubble. Turn halfway
Rest for 10 min. Slice and serve with non-dairy ice cream.