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Mashed Potato Green Bean Casserole
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5 from 2 votes

Mashed Potato Green Bean Casserole

Mashed Potato and Green Bean Casserole is a delicous mash-up of 2 Thanksgiving favorites.
Course Side Dish
Cuisine Southern
Keyword Casserole, Thanksgiving
Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings 8 -10 servings
Calories 396kcal


  • 2 (24-ounce) packages Simply Potatoes Traditional Mashed Potatoes
  • black pepper, to taste
  • 4 cups cooked green beans
  • 1 (10.5-ounce) can condensed cream of mushroom soup
  • 1/3 cup milk
  • 1 teaspoon soy sauce
  • 1 1/2 cups shredded cheddar cheese, divided
  • 1 (6-ounce) can French fried onions, divided


  • Preheat oven to 350 degrees.
  • Transfer Simply Potatoes Mashed to a lightly greased 9x13-inch pan and use a rubber spatula to smooth into an even layer.
  • Season potatoes to taste with pepper.
  • In a large bowl, combine green beans, soup, milk, soy sauce, cheddar cheese, and half of French fried onions. Stir to mix and pour on top of potatoes.
  • Sprinkle remaining onions on top.
  • Place in oven an bake for 25 to 30 minutes.


Calories: 396kcal