Preheat your oven to 400°F.
This is the magic temperature for a perfectly cooked pie!
In a large skillet, heat olive oil over medium heat.
Add the ground beef, chopped onion, and salt.
Cook until the beef is browned and crumbly and the onions are soft.
Drain the excess fat from the pan to avoid a greasy pie.
Sprinkle in garlic powder, onion powder, and black pepper.
Add Worcestershire sauce and cook for another 2 minutes.
In a mixing bowl, whisk together the milk, flour, eggs, and baking powder.
You want this mixture to be smooth and lump-free.
Pour the beef mixture into a greased 9-inch pie plate, then top with cheese.
Pour your milk mixture evenly over the top.
Bake in the preheated oven for 25-30 minutes, or until the top is golden brown and set.
Let it cool for a few minutes before slicing.