Preheat oven to 350F (180C).

Brown the ground beef in a large skillet over medium heat.

Add chopped onions to the skillet with the beef and cook until softened.

Drain off any excess grease.

In a large bowl, combine the browned beef and onions with the cream of celery soup, cream of mushroom soup, cream of chicken soup, beef with barley soup, and chicken and rice soup.

Mix all the ingredients thoroughly until well combined.

Gently fold in 2/3 of the chow mein noodles into the soup mixture.

Transfer the mixture to a large casserole dish.

Sprinkle the remaining chow mein noodles evenly over the top of the casserole.

Bake in the preheated oven for 45 minutes, or until golden brown and bubbly.

Let cool slightly before serving.