To make the pie crust, whisk together the flour and salt and then cut in the butter. Then pour in the water ¼ cup at a time until the dough just comes together. Chill in the fridge while you prepare the filling.
For the filling, begin by browning the sausage. Then add in the diced onion and peppers of choice (we used 6 sweet peppers) and sauté until tender.
Transfer the cooked meat and vegetables into a large bowl and allow to cool. Preheat the oven to 400 °F.
Meanwhile, roll out the pie crust on a floured surface and transfer into a greased, 9" pie pan. Prick the dough on the bottom of the pan with a fork and place back in the fridge.
To the cooled filling mixture add the remaining ingredients and whisk until combined. Pour into the crust and bake until set (about 40 minutes). Allow to cool for 10 minutes and then enjoy!