Cheesy Garlic & Herb Potato Casserole Recipe: A Side Dish for Any Time of the Year by 30Seconds Food

Cheesy Garlic & Herb Potato Casserole Recipe: A Side Dish for Any Time of the Year

Why do we wait until the holidays to make potato casseroles? Baked potato casseroles like au gratin potatoes, loaded potato casserole, Amish mashed potato casserole and hash brown casserole are good any time of the year (or week!).

This easy cheesy garlic and herb potato casserole recipe is one for the books. The casserole is made with frozen hash brown potatoes, sour cream, cream of mushroom soup, mozzarella and Parmesan cheese, onion, garlic and herbs. The topping is simply melted butter, herbs and cornflakes.

Use whatever fresh herbs you have on hand. Parsley, fresh chives, sage, oregano, rosemary and thyme are good options and add so much flavor and freshness. If you're really a garlic lover, add more garlic to the recipe! Serve this side dish with chicken, beef, pork, turkey, ham or lamb.

Cuisine: American
Prep Time: 10 minutes
Cook Time: 1 hour
Total Time: 1 hour and 10 minutes
Servings: 12


  • 1 bag (32 ounces) frozen diced hash browns 
  • 2 cups sour cream
  • 1 can (10 ounces) cream of mushroom soup
  • 1 cup shredded mozzarella cheese
  • 1 cup shredded Parmesan cheese
  • 1 small onion, diced
  • 2 tablespoons fresh chopped herbs (rosemary, thyme, oregano, sage, chives, parsley, etc.), divided
  • 4 cloves garlic, minced
  • 2 cups crushed cornflakes 
  • 1/2 cup melted butter

Here's how to make it: 

  1. In a large bowl, stir together the potatoes, sour cream, cream of mushroom soup, mozzarella, Parmesan, onion, garlic and half the herbs. Season well with salt and pepper. Pour the mixture into a casserole dish. 
  2. In a small bowl, combine the cornflakes, butter and remaining herbs. Sprinkle over the potatoes. 
  3. Bake in a preheated 350-degree F oven for about 1 hour or until heated through and golden brown. 

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Recipe cooking times and servings are approximate. Need to convert cooking and baking measurements? Here are some kitchen conversion charts. Here's how to submit your recipes to 30Seconds.

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