Preheat the oven to 375F. Light grease a 9x12-inch baking dish with non-stick cooking spray.
Arrange the frozen biscuits in the prepared dish in 4 rows of 3.
Melt the butter in a microwave-safe bowl, then pour half of the butter over the biscuits.
Reserve 1/3 cup of the cheese, then sprinkle the other 1 2/3 cup over the biscuits in the baking dish.
Sprinkle the ranch seasoning all over the layer of cheese.
Pour the remaining half of the melted butter all over the cheese.
Spread the bacon evenly over top, then sprinkle on the remaining 1/3 cup of cheese.
Cover the pan with foil, then bake at 375F for 25 minutes. Remove the foil and bake for an additional 5 minutes until the biscuits are golden brown.
Top the biscuits with chopped green onion before serving.