Ground Beef and Biscuit Bake

1 1/2 lbs. ground beef 1 c. chopped onion 1 can cream of mushroom soup 8 oz. cream cheese 1/4 c. milk 1/4 c. catsup 1 t. salt 10 oz. can refrigerated biscuits
Brown beef and onion in a skillet, drain. Stir soup, cream cheese , milk, catsup and salt into beef. Pour into a lightly greased 13x9 inch caserole. Bake at 425 for 10 minutyes.Top with biscuits. Bake 15 to 20 minutes or until biscuits are browned.