Preheat oven to 350°F. In a large bowl, whisk together soup, milk, garlic salt and black pepper. Stir in frozen potatoes, green beans, 1 1/3 cup onions and 1 cup cheese.
Pour mixture into a 13x9-inch baking dish. Bake, uncovered, 30 minutes or until hot and bubbly. Sprinkle with remaining 1 cup cheese and 1 1/3 cups onions.
Bake 5 minutes or until cheese is melted and onions are lightly browned.
· O'Brien potatoes are finely diced potatoes, onions and peppers found in the freezer section of your grocery store near the hash brown potatoes. · Use any cream soup you enjoy, such as cream of chicken or cream of potato. · To make this side dish a meal, add 1 lb. cooked ground beef or ground turkey in Step 1.