Preheat air fryer or oven to 400 degrees.
Saute the mushrooms, adding garlic in the last minute of cooking.
Cook ramen noodles according to package instructions, reserving the favoring package. Crack an egg into a bowl, drain noodles, and cover egg with hot noodles for a minute or two. Add half a tablespoon of butter on top of the noodles, and mix with the egg.
Spray a oven safe glass Pyrex glass dish with olive oil or cooking spray, and add the chicken as the bottom layer.
Mix milk, cream of bacon soup, and ramen flavoring package together in a bowl. Pour on top of the chicken in your casserole dish.
Next add the mushrooms and garlic, and then top with the noodles.
Cut two slices of bacon into small strips. Add two slices of American cheese to the top of your casserole, covering evenly. Top with sliced bacon.
Cook for 10 minutes, or until bacon is cooked and cheese has browned.