Preheat your oven to 400°F (200°C).

In a large skillet, cook the ground beef and onion over medium heat until browned, about 7-10 minutes. Drain excess fat.

Add salt, black pepper, garlic powder, and Worcestershire sauce to the skillet. Stir and let meld for 2-3 minutes.

Grease a 9-inch pie dish and spread the beef mixture evenly across the bottom.

Sprinkle cheddar cheese over the beef mixture.

In a mixing bowl, whisk together the eggs, milk, and flour until smooth, then pour over the filling.

Bake for 25-30 minutes or until the crust is golden brown and firm.

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