Prepare the biscuit topping by combining all of the ingredients together in a large bowl. Set aside.
Preheat your oven to 350°F.
Shred your cheese. Set aside.
Prepare/chop your veggies, then add them a cast iron braiser or oven safe sauce pan and sauté until fragrant.
Add in the filling ingredients aside from the cheese, the tapioca starch/flour and the water. That will be used to thicken the filling later.
Turn the stove heat up slightly to bring the filling to a simmer for a few minutes.
Mix together the water and tapioca starch/flour to form a paste. Slowly pour this into the skillet in three separate portions, mixing frequently as you go. This will thicken the filling.
Stir in the cheese until fully incorporated. Be sure your veggies are soft, then turn off the stove heat.
Using your hands, separate the biscuit dough into 7-8 balls. Flatten each ball into a disc and space out on top of the casserole.
Top the biscuits with melted butter and dried herbs mixture (optional).
Bake uncovered for 15-20 minutes.
Serve warm and enjoy! You can store leftovers covered in the fridge then reheat in the microwave.