01 -
Preheat your oven to 350°F (175°C) and grease a 9×13-inch baking dish.
02 -
In a non-stick skillet, brown the ground beef and diced onion over medium-high heat until fully cooked. Drain excess grease.
03 -
Stir in the cheddar soup, cream of mushroom soup, milk, salt, pepper, and 1 cup of shredded cheddar until combined and melted.
04 -
Spread the beef mixture evenly in the prepared baking dish and add the remaining cheese on top.
05 -
Prepare the biscuit topping by mixing the Cheddar Bay Biscuit mix with shredded cheese and milk; pour evenly over the beef layer.
06 -
Bake uncovered for 50-55 minutes until golden brown on top. Brush melted butter mixed with seasoning over biscuits before serving.