There are a lot of impossible pie iterations out there: taco, enchilada, and lasagna versions (and many more) all have their fans. It is an easy dish to put together, and hits all the comfort food buttons from the first time you ever try it. It is potentially closer to being a quiche than a pie in terms of structure, but arguably a quiche is a kind of pie, too, so it becomes circular. The important thing is that you don't need to make a separate crust; the crust forms itself from the flour, creating both a thin upper and (usually also) lower crust while the pie bakes. This is the impossible bit. Or the amazing bit. Or at the very least, the easy bit.
I don't keep baking mix on hand, so this version is done without Bisquick or any of its competitors. Really, all you need to do is scale your own biscuit recipe to a half cup of flour, and you're good to go. But just in case, I've written it right into the recipe below.
Impossible Cheeseburger Pie
Serves 4 - 6
250 grams lean ground beef
250 grams lean ground pork
1 medium yellow onion, finely diced
2 cloves of garlic, minced
1 teaspoon beef base (such as Better than Bouillon)
1 teaspoon Worcestershire Sauce
1/4 teaspoon onion powder
1/2 teaspoon ground mustard seed
1/2 teaspoon ground black pepper
150 grams aged cheddar, grated (divided)
1/2 cup unbleached all-purpose flour
1 teaspoon baking powder
1 tablespoon butter
1/4 teaspoon coarse salt
2 large eggs, beaten
1 cup whole milk
Heat the oven to 200°C/400°F, with a rack in the middle. Spray a 9-inch glass pie plate with cooking spray, or lightly grease.
Sauté the ground meats over medium heat for 8 to 10 minutes, until browned, and then stir in the diced onion, garlic, the beef base, pepper, ground mustard, Worcestershire sauce and powdered onion. Continue to stir until it is well-integrated, and the onion is soft. Spread the mixture in the prepared pie plate, and sprinkle with 3/4 of the cheese.
In small mixing bowl, stir together the flour, ground mustard seed, salt and baking powder, and cut in the butter with a fork or pastry blender. Combine the beaten eggs and milk, and stir into the flour mixture with a fork or whisk, beating vigorously. It will be alarmingly wet. Pour evenly over the meat and cheese in the pie plate. Hold onto the remaining cheese.
Bake for 30 minutes, then top with the rest of the cheese and return to the oven for a minute (if necessary) to let it melt. Let the pie stand for five minutes before slicing and serving. It cuts and lifts quite neatly. Serve with pickles and sliced tomato to enhance the "cheeseburger" effect, and a green salad for some extra vegetables.
Leftovers, should you be so lucky (or have a small household), reheat very well, and a squiggle of Sriracha sauce (or ketchup, to fit the theme) on top freshens it nicely.