Grease a medium size casserole dish
Preheat oven to Preheat oven to 350ºF.
In a large bowl combine sliced peaches, flour, butter, and cinnamon.
Using a spatula, chop up peach slices into bite-sized pieces.
Cut each biscuit into 4 pieces. Stir into peach mixture.
Pour into the prepared pan, making sure to spread biscuit pieces evenly in the pan.
Sprinkle top with brown sugar.
Bake 30 to 35 minutes, until the biscuits start to turn golden brown.