Preheat your oven to the temperature recommended on your pie crust package, usually around 425°F (220°C). Gather your ingredients and prepare a 10-inch oven-safe skillet.

Place your skillet over medium heat and add the ground beef. Break it apart as it cooks. Season with salt and pepper, and cook until no longer pink, about 5-7 minutes.

Once the beef is browned, stir in your chopped vegetables. Continue cooking for another 3-5 minutes until softened and fragrant.

Sprinkle in your cheese, mixing it into the beef and vegetables until melted, about 1-2 minutes. Add garlic powder if desired.

Carefully lay the pie crust over the hot filling. Tuck the edges down around the filling and cut a few slits for ventilation.

Bake according to the pie crust instructions, usually about 25-30 minutes, until the crust is golden brown.

Once baked, let your pie cool for a few minutes. Cut into wedges and serve warm, garnished with ketchup and mustard.