Preheat oven 400°F. Line baking sheet with parchment paper and set aside.
In a large bowl, combine oat flour. flax seed meal, tapioca starch, potato starch, baking powder, sea salt, and curry powder
Stir in vegan butter until the dough resembles crumbs. Stir in almond milk and use hand to form a dough ball.
Further divide ball into 8 smaller balls. Roll out each ball in between 2 parchment paper sheets using a rolling pin, about a 4-inch circle.
Remove top layer sheet, add 1 tablespoon of lentil filling on one half of circle, making sure to leave edges clear. Fold over the other half, by folding parchment paper and seal crimping edges with a fork.
Transfer to baking sheet. Repeat with remaining dough. Bake for 20-25 minutes or until golden brown.