Preheat your oven to 400°F (200°C).

In a large skillet over medium heat, add the ground beef and diced onion. Cook for 6-8 minutes until browned.

Stir in salt, black pepper, garlic powder, and Worcestershire sauce into the cooked beef mixture.

Grease a 9-inch pie dish with cooking spray or butter. Spread the beef mixture evenly across the bottom and sprinkle with cheddar cheese.

In a mixing bowl, whisk together eggs, milk, and flour until smooth. Pour the batter over the layers in the pie dish.

Bake for 25-30 minutes until the top is golden brown and the center has set.

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