Prepare your choice of vegetables by dicing them. Season the ground beef with salt, pepper, and garlic powder in a separate bowl.

In a large skillet over medium-high heat, add the seasoned ground beef and brown for 5-7 minutes.

Add the diced vegetables to the skillet and cook for an additional 3-5 minutes until soft and fragrant.

Sprinkle the cheese into the skillet and stir until melted and combined with the beef and veggies.

Preheat your oven to 375°F (190°C). Spread the beef mixture into the prepared pie crust in a pie dish.

Bake the assembled pie for about 30 minutes, or until the crust is golden brown.

Let it cool for about 5-10 minutes before slicing and serving warm.