Ham Potato Onion Casserole Recipe

This comforting and cheesy casserole is a delightful twist on classic flavors! A happy accident born from a frittata misunderstanding, this recipe delivers a hearty and satisfying meal perfect for weeknights or special occasions. Creamy potatoes, savory ham, and sharp cheddar cheese combine for a taste sensation that will have everyone asking for seconds.

Prep Time 20 mins
Cook Time 50 mins
Calories 526.3 kcal
Protein 44g
Rating 5.0 (1 Reviews)
Ham Potato Onion Casserole 25

Recipe Actions

Share this recipe:

Recipe Author

Chef Forktionary, author of this recipe

Recipe adapted from Food.com. Standardized by Forktionary.

Ingredients for Ham Potato Onion Casserole

Cook Smarter with Sous, Your Kitchen Companion

Missing an ingredient for this Ham Potato Onion Casserole? Need a perfect wine pairing or a healthy side dish idea? Don't guess—ask Sous! Your AI-powered sous-chef is ready to help you swap ingredients, adjust serving sizes, and discover flavor tips in seconds.

How to Make Ham Potato Onion Casserole

  1. Preheat oven to 350°F (175°C). Grease a 9x11 inch baking pan.
  2. In a large bowl, combine 2 cups cooked ham (diced), 1 cup shredded Swiss cheese, and 4 cups frozen hash brown potatoes (thawed and squeezed dry).
  3. In a separate bowl, whisk together 1 (10.75 ounce) can condensed cream of mushroom soup and 1/2 cup milk.
  4. Pour the soup mixture over the ham, cheese, and potato mixture; stir gently to combine.
  5. Pour the mixture into the prepared baking pan.
  6. Dot the top with 2 tablespoons melted butter.
  7. Sprinkle 1 cup shredded cheddar cheese evenly over the casserole.
  8. Bake for 30-40 minutes, or until golden brown and heated through.

Nutrition Information (Approximate per serving)

Sodium

59 g

Sugar

13g

Fat

74g

Carbs

11g