Preheat the Oven: Preheat your oven to 400°F (200°C). Lightly grease a 9-inch pie dish or casserole dish.

Cook the Beef Mixture: In a large skillet, cook the lean ground beef over medium heat until browned and cooked through, about 5-7 minutes. Drain any excess fat.

Add Vegetables and Seasoning: Add the chopped onion, red bell pepper, paprika, parsley, salt, and pepper to the skillet with the beef. Sauté for another 2-3 minutes until the vegetables are softened and fragrant.

Layer the Beef in the Dish: Transfer the beef mixture into the prepared pie dish, spreading it evenly. Sprinkle the grated sharp cheddar cheese over the beef mixture.

Prepare the Bisquick Batter: In a medium bowl, whisk together the Bisquick mix, milk, and eggs until smooth and well combined.

Pour the Batter: Pour the Bisquick batter over the beef and cheese mixture, ensuring it evenly covers the entire surface.

Bake the Pie: Bake in the preheated oven for 25-30 minutes, or until the top is golden brown and a knife inserted into the center comes out clean.

Serve: Allow the cheeseburger pie to cool for 5 minutes before slicing. Serve warm, and enjoy with a side salad or your favorite dipping sauces like ketchup or mustard for a complete meal.