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BEST CHEESY POTATO CASSEROLE centered hero view, clean and uncluttered
Olivia Farnsworth

Best Cheesy Potato Casserole Easy Weeknight Dinner

This best cheesy potato casserole is a perfect easy dinner and weeknight meal that your whole family will adore. Featuring a creamy, cheesy potato bake, it makes a comforting side dish or a satisfying family dinner option packed with flavor and simplicity.
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Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes
Servings: 10 people
Calories: 166
Ingredients Method Notes

Ingredients
  

  • 3 tablespoons butter
  • 1 cup yellow onion, diced into 1/2" pieces
  • 20 ounces frozen shredded potatoes
  • 1 10-ounce can cream of mushroom soup
  • 1 cup sour cream
  • 2 cups shredded cheese , (divided)
  • 2 teaspoons garlic salt
  • 1 cup chicken broth

Method
 

  1. Set your oven to 350 degrees Fahrenheit to preheat.
  2. Lightly coat a 9" x 13" baking dish with nonstick cooking spray.
  3. Place the butter in a medium skillet over medium heat until melted, then add the diced onion and cook, stirring often, until it softens and begins to caramelize, about 5 minutes. Remove from heat.
  4. In a spacious mixing bowl, combine the frozen shredded potatoes, cream of mushroom soup, sour cream, 1 1/2 cups of shredded cheese, the cooked onions, garlic salt, and chicken broth. Stir well to incorporate everything evenly.
  5. Transfer the potato mixture into the prepared baking dish, spreading it out evenly.
  6. Sprinkle the remaining 1/2 cup of shredded cheese evenly across the top of the casserole.
  7. Bake the dish uncovered for 30 to 40 minutes until the edges are bubbling and the top is lightly browned.
  8. Remove from the oven and serve warm. Enjoy your comforting cheesy potato bake!

Notes

  • Store leftover casserole in an airtight container in the refrigerator for up to 3 days or freeze for as long as 2 months. To reheat, microwave a portion in a microwave-safe dish for 1 minute, stir, and heat again until hot. Alternatively, warm it in a preheated oven until heated through.