Preheat the Oven: Set your oven to 350°F (175°C) to ensure it is properly heated before baking.
Brown the Beef: In a large non-stick skillet over medium-high heat, add 1.5 lbs of lean ground beef. Use a spatula to break it up as it cooks.
Add the Aromatics: Incorporate 1 diced yellow onion and 1 tablespoon of chopped garlic into the skillet. Stir occasionally until the onion is tender and the beef is browned.
Combine Soups: Once the beef is fully cooked, add 10.5 oz of condensed cheddar soup, 10.5 oz of cream of mushroom soup, ½ cup of milk, ½ teaspoon of salt, and ½ teaspoon of pepper into the skillet. Stir until well combined.
Add Cheese: Mix in 2 cups of shredded cheddar cheese, allowing it to melt into the beef mixture. Remove the skillet from heat once combined.
Prepare the Baking Dish: Spray a 9 x 13 inch baking dish with cooking spray and pour the ground beef mixture into it, spreading it evenly.
Layer Cheese: Sprinkle another 1 cup of shredded cheddar cheese on top of the ground beef mixture, creating a cheesy layer.
Mix the Biscuit Batter: In a large mixing bowl, pour in the box of Cheddar Bay Biscuit mix (setting aside the seasoning packet). Add 1 cup of shredded cheddar cheese and 2 cups of milk. Stir until the mixture is smooth and free from large lumps.
Top with Biscuit Batter: Carefully pour the biscuit batter over the ground beef mixture in the baking dish, spreading it evenly.
Bake the Cobbler: Place the baking dish in the preheated oven and bake for about 50 – 55 minutes, or until the biscuit topping is nicely browned across the top.
Brush with Butter: Remove the baking dish from the oven. In a small bowl, combine ¼ cup of melted butter with the seasoning packet saved from the biscuit mix. Brush this mixture generously over the cobbler.
Rest the Dish: Let the cobbler rest for 5 minutes, allowing the flavors to meld and the filling to thicken.
Garnish and Serve: Sprinkle fresh chopped parsley on top if desired, serve, and enjoy your delicious creation!