01 -
Heat your oven to 400°F and generously grease a 9-inch pie pan with butter or cooking spray to prevent sticking.
02 -
Heat a large skillet over medium heat. Add the diced onion and cook for about 3 minutes until it starts to soften. Add the ground beef and cook, breaking it up with a spoon, until completely browned. Drain any excess grease.
03 -
Season the beef mixture with salt, pepper, and garlic powder to taste. Spread this mixture evenly in your prepared pie pan, then sprinkle the shredded cheese over the top.
04 -
In a medium bowl, whisk together the Bisquick mix (or flour mixture), milk, and eggs until completely smooth with no lumps remaining.
05 -
Pour the batter evenly over the beef and cheese layer in the pie pan. The batter will settle around the filling. Bake for 20-25 minutes until the top is golden brown and a knife inserted in the center comes out clean.
06 -
Let the pie cool for 5 minutes before cutting to help it set up properly. Cut into wedges and serve warm with your favorite burger toppings or sides.