In roaster pan, cook onions ... tender. Blend in soup, cream cheese and milk until somewhat ... then add shrimp, corn, mushrooms. Bring to boil, ... or more, stirring occasionally.
Spray Pam on medium baking dish. Drain 2 cups corn and pour in dish. Chop ... corn. Mix chicken soup, sour cream, Cheddar cheese, grated onion, ... degrees for 1 hour.