01 -
Preheat the oven to 350°F. In a large bowl, combine the cream of mushroom soup, whole milk, garlic salt, and black pepper. Stir in the frozen O’Brien potatoes, drained green beans, 1 1/3 cups of the crispy fried onions, and 1 cup of shredded cheese until well mixed.
02 -
Transfer the mixture evenly into a 9x13-inch baking dish. Bake uncovered for 30 minutes or until heated through and bubbly.
03 -
Remove the baking dish from the oven and sprinkle the remaining 1 cup cheese and 1 1/3 cups crispy fried onions evenly over the top. Return to the oven and bake for an additional 5 minutes or until the cheese has melted and the onions are lightly browned.
04 -
Allow to cool slightly before serving. Enjoy the enhanced green bean casserole with the added texture and flavor of diced potatoes.