01 -
Set the oven to 400°F (200°C) to preheat.
02 -
In a skillet over medium heat, cook ground beef and chopped onion until beef is browned and onion softens. Drain excess fat.
03 -
Add salt, black pepper, Worcestershire sauce, and ketchup to the beef mixture. Stir thoroughly to combine.
04 -
Transfer the beef mixture into a 9-inch pie plate, spreading it evenly. Sprinkle shredded cheddar cheese over the top.
05 -
In a mixing bowl, whisk together milk, eggs, and Bisquick mix until smooth.
06 -
Pour the batter evenly over the beef and cheese layer. Bake for 25 to 30 minutes until golden and a knife inserted comes out clean.
07 -
Allow the pie to cool before slicing into six pieces and serving.