Preheat the oven to 400 degrees F (200 degrees C).
White Onion (1)
Canned French Style Green Beans (4 cups)
Canned Corn (2 2/3 cups)
Water Chestnuts (1 3/4 cups)
In a 9-inch casserole pan, layer the green beans, corn, water chestnuts and chopped white onion.
In a small bowl, mix together
Sour Cream (1 cup)
Cream of Chicken Soup (10.5 oz)
. Spread mixture over casserole.
Unsalted Butter (1/2 cup)
Top casserole with
Monterey Jack Cheese (1 1/2 cups)
Crackers (1 1/2 cups)
, and melted butter. Cover with foil and bake for 40 minutes. Remove the tin foil in the last 10 minutes and cook until lightly browned and bubbling.