Instructions

• Preheat oven to 400°F. Spray a 9-inch deep-dish pie pan with nonstick cooking spray.
• Heat a large sauté pan over medium heat. Add the 2 pounds ground beef, 1 cup chopped onion, and the minced garlic as listed in the ingredients. Cook, breaking the beef apart with a spoon, until the beef is fully browned.
• Drain off most of the fat from the pan.
• Stir the 1/4 cup dill pickle relish (not sweet) and 2 tablespoons yellow mustard into the cooked beef until evenly combined.
• Transfer the beef mixture to the prepared pie pan and spread it into an even layer.
• Fold the 4 American cheese slices in half diagonally to form triangles. Arrange the folded slices over the beef to cover the surface, then sprinkle 1 cup shredded sharp cheddar cheese evenly on top.
• In a small bowl, whisk together 1 cup milk, 1/2 cup Bisquick baking mix, and 3 large eggs until smooth.
• Pour the milk–Bisquick–egg mixture evenly over the cheese and beef in the pie pan.
• Bake at 400°F for 25–30 minutes, until the top is golden and set. Let rest a few minutes, then cut and serve warm.