Mashed Potato Casserole Recipe

Mashed Potato Casserole

A few days ago, actually over a week ago now, to be honest, I have participated in a great Instagram day with Idahoan Mashed Potatoes celebrating the First Ever National Mashed Potato Day – how cool is that?

Do you love the mash? I do! My husband is on a strict keto diet, but he actually took a cheat day off to eat the casserole – it was so delicious, it looked amazing and appetizing, and it sure was!

The main ingredient in this casserole is… you guessed it! It is mashed potatoes! Those are scrumptious! The other great thing about this recipe is that you can vary it in many different ways, depending on what products you have on hand at the moment – and change your protein any way you like, and spruce up your mash any way you like – such a great and fast recipe to make in a busy household!

Mashed potato casserole uncooked


Mashed Potato Casserole uncooked


Mashed potato casserole

What makes it fast? The fact that you are using packaged mash, of course! I have had packaged mash since childhood, but my husband actually tried it not long ago for the first time (as he said), and was so amazed by the flavor and texture of the mash – it spares you the labor of peeling potatoes (takes me usually 10-20 minutes), boiling them (another 20 to 30 minutes), and mashing them. A lot of the times because my schedule and dinner prep is always wacky, I end up with mealy potatoes, or too clumpy potatoes, or clay-like potatoes – I know I should boil my cream or milk I am adding, and then add to the potatoes, and I always try to cut the time, and don’t heat up the cream, and end up with a mess, when I make mashed potatoes from scratch. So, what is the point of that? Yes, I preach everything fresh, and from the garden, but this is one time when I can safely say – packaged mashed potatoes is a very good product, and leaves you with amazing flavor, perfect texture of potatoes, and such a time saver!

So, phew, there was my long shpiel, but, listen, honestly, when you are making a casserole on a weekday – you don’t have the whole day to do it!

Mashed potato casserole


Mashed potato casserole

Now for the recipe!

Mashed Potato Casserole Recipe
Two ingredients - cooked ground beef and mash - makes for an amazingly simple casserole recipe, and will delight even the picky eaters
  • ground beef (or any meat of your choice you have on hand, lamb works great in this dish)
  • onions (whatever you have - red onions, white onions or shallots)
  • spices you like for your beef - I added Chinese five spice mix, and some fresh herbs
  • mashed potatoes - either make your own from scratch or use packaged mashed potatoes
  • a bit of parmesan or any other cheese you like for the top
  1. Fry onions until they are translucent in oil or butter.
  2. Add beef, cook until doneness.
  3. Prepare mashed potatoes according to package directions or your own recipe from scratch.
  4. Divide mashed potatoes into halves.
  5. Use a casserole dish suitable for the amount of meat and mashed potatoes you have.
  6. Place half of mashed potatoes on the bottom of the casserole dish. Cover the mash with your cooked meat.
  7. Place the second half of your mashed potatoes on top of the beef. I used a piping bag with my chosen tip to decorate the top of the casserole dish.
  8. Sprinkle your cheese on top of the dish.
  9. Cook at 350 degrees for about 20 minutes. Your dish is pre-cooked, so you are just melting the cheese on top, and reheating the dish essentially.
  10. You can also use the broiler at the end for extra browning.
  11. Enjoy!

I have to say – everyone in the family loved the dish! I can’t get over it! My kids don’t really like to eat anything casserole – they don’t like mixed dishes, and this was such a surprise for me to see them go for seconds! Must be the lure of mashed potatoes! This dish is a crowd pleaser! Perfect for big parties and family gatherings!


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