01 -
Preheat oven to 350°F (175°C). Grease a 9×13-inch baking dish with cooking spray.
02 -
Heat a large non-stick skillet over medium-high heat. Add the ground beef and diced onion. Cook, crumbling the beef, until fully browned. Drain any excess grease if needed. Stir in the cheddar soup, cream of mushroom soup, milk, salt, and pepper until well combined. Add 1 cup of shredded cheddar cheese and stir until melted. Remove from heat.
03 -
Pour the ground beef mixture into the prepared baking dish, spreading it evenly. Sprinkle the remaining 1 cup of shredded cheddar cheese on top.
04 -
In a large mixing bowl, combine the biscuit mix (without the seasoning packet) with shredded cheddar cheese and milk. Stir until no large lumps remain. Pour the biscuit batter evenly over the beef mixture.
05 -
Bake uncovered for 50-55 minutes, or until the biscuit topping is golden brown.
06 -
In a small bowl, mix the melted butter with the seasoning packet from the biscuit mix. Brush the butter mixture over the biscuit topping. Let the casserole rest for 5 minutes to allow the filling to thicken. Sprinkle with fresh chopped parsley if desired. Serve warm.