Cheesy Ham and Mashed Potato Casserole

4.47 from 39 votes
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Delicious Cheesy Ham and Mashed Potato Casserole is a great way to use up leftover spiral baked ham and mashed potatoes from a big holiday dinner! Creamy, rich, cheesy leftover ham is the best way to use up leftover Easter dinner ham! 

mashed potatoes, cheese, ham, and green onions in a dish
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After the holidays, we always have tons of leftovers.

Ham, turkey, veggies, rolls… and mashed potatoes.

Always gallons and gallons of mashed potatoes!

This year, I came up with a delicious twist on a mashed potatoes that is SO incredibly easy and delicious- this Cheesy Leftover Ham and Mashed Potato Casserole is a great way to use up all those mashed potatoes (and honey baked or spiral ham).

If you’ve ever had a big pile of Leftover Easter Ham and you’ve been looking for a delicious, hearty, comforting, and delicious way to use up leftover spiral ham – you need to bookmark this Cheesy Ham and Mashed Potato Casserole recipe!

mashed potatoes, cheese, ham, and green onions in a dish

This leftover ham casserole was so easy to make it came together in under five minutes (just chop up some cold leftover ham, shred some cheese, and dump it all in a bowl) – and can even be made as a one-pot meal if you mix it all in the bowl you’re going to cook it in.

This cheesy ham and potato casserole is so delicious and easy- when I made it, it disappeared in seconds. My husband and my in-laws happily scooped it all up and even grabbed seconds! It was gone in a flash… and we were all quite full and happy – and I was glad to have a new way to use up leftover Easter ham.

This is an awesome recipe to have ready after your next big holiday dinner (or anytime you’re making a big spiral cut ham dinner and mashed potatoes).

You could also top this with crunchy onions, bacon, pancetta- or mix in peas, roasted carrots or turnips, and any other veggie you have leftover on hand!

mashed potatoes, cheese, ham, and green onions in a dish

Leftover Ham and Mashed Potatoes Casserole Variations

This easy cheesy ham and potato casserole is a snap to throw together – and totally adaptable to the leftovers you have on hand – or can be changed up with some delicious vegetables or cheese additions, too!

Some of my favorite ideas to kick up this recipe are below:

  • Add smoked gouda for a deliciously rich smoky casserole everyone will rave about!
  • Add bell peppers for a pop of color and a fresh, delicious crunch.
  • Mix in dill, basil, or rosemary.
  • Top with crumbled bacon for an extra indulgent ham casserole.
  • Mix lightly browned mushrooms into the ham and potato casserole
  • Add roasted garlic cloves for an earthy, rich hit.
mashed potatoes, cheese, ham, and green onions in a dish

What to Enjoy with Ham and Mashed Potato Casserole

If you love this deliciously easy and cheesy leftover ham recipe, please visit some of my other favorite recipes that use up leftovers from a big dinner! These dishes are quick, simple, easy – and family approved ways to use up holiday dinner leftovers in a way you won’t get sick of eating!

Easy Loaded Leftover Mashed Potato Soup

Leftover Pie Parfaits

Try these salads with your casserole:

mashed potatoes, cheese, ham, and green onions in a dish

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mashed potatoes, cheese, ham, and green onions in a dish

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Cheesy Ham and Potato Casserole

Delicious Cheesy Ham and Mashed Potato Casserole is a great way to use up leftover spiral baked ham and mashed potatoes from a big holiday dinner! Creamy, rich, cheesy leftover ham casserole perfect for Easter ham leftovers! 
Cuisine American
Keyword best casserole recipes, ham, leftover ham recipes, leftover mashed potato recipe, mashed potato casserole
Prep Time 2 minutes
Cook Time 35 minutes
Total Time 37 minutes
Servings 6 people
Calories 514kcal
Author Courtney ODell
Cost $7

Ingredients

  • 1 lb spiral ham cubed
  • 4 cups mashed potatoes
  • 1 cup sharp cheddar cheese shredded
  • 1 tbsp garlic powder
  • 1 tsp celtic sea salt
  • 1 tsp pepper fresh cracked
  • 4 tbsp butter diced
  • 2 tbsp chicken stock
  • ½ cup caramelized onions

Instructions

  • Preheat oven to 350 degrees. 
  • Grease a large casserole dish. 
  • Add all ingredients to dish and mix well. 
  • Bake for 35 minutes – until cheese is bubbly and melted. Cover with foil for first 20 minutes of cooktime, removing at the end to crisp up the top of the casserole. 
  • Serve immediately. 

Nutrition

Serving: 1g | Calories: 514kcal | Carbohydrates: 28g | Protein: 29g | Fat: 32g | Saturated Fat: 15g | Polyunsaturated Fat: 12g | Trans Fat: 2g | Cholesterol: 112mg | Sodium: 1941mg | Fiber: 3g | Sugar: 4g

About Courtney

Courtney loves to share great wine, good food, and loves to explore far flung places- all while masting an everyday elegant and easy style at lifestyle blog Sweet C’s Designs. Sweet C's devoted to finding the best food and drinks you'll want to make or find, around the world!

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4.47 from 39 votes (39 ratings without comment)

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4 Comments

  1. Suzanne Holt says:

    This sounds so delicious! Thanks for this great idea.

  2. creativekkids says:

    Yum! I love mashed potatoes and ham! I’ve pinned it to the Tasty Tuesday’s PInterest board for future reference! Thanks for linking up at our party.

  3. leighdstrl says:

    Oh my this sounds yummy! Pinned

  4. Carlee says:

    I love re-purposing leftovers and this looks great! No wonder it went in a flash. It always is a bit of a bummer when the leftovers of a great meal are gone!