Monday 6 September 2021

Twice Baked Squash Casserole

Twice Baked Squash Casserole 

A few weeks back my sister and I picked up some Winter squashes at a farmer's market a bit further on up the valley from where we live.  They had a huge variety of squashes available, ranging from every colour, shape and size under the sun.

I bought a mash potato squash and a sweet potato squash and a spaghetti squash. My two potato type of squashes were, the mash potato squash the size of a small bowling ball, and the sweet potato squash a similar weight and size (except it is elongated) and my spaghetti squash was roughly twice the size of the other two.

Twice Baked Squash Casserole 
I had never cooked or eaten any of these squashes before, but I love squash in general and I was intrigued by the names. You can read about my experience in cooking the Mash Potato Squash here

My sister had also bought several squashes, including the same types and she cooked the sweet potato squash one Sunday for with our dinner.

Twice Baked Squash Casserole 
In general we discovered that both of these squashes have a very dry texture when cooked.  This lends them beautifully towards mashing, or roasting, without having to drain off much liquid.

Their flavors were also quite mild, or bland, which meant that they would be beautiful when mixed together with other ingredients.  We added butter and Maple syrup along with some seasoning to the sweet potato squash.

Twice Baked Squash Casserole 
I treated the mash potato squash just like potato and simply mashed it together with some butter and seasoning. I thought it was delicious that way.

Today I got to thinking what if I really decided to treat it like a potato.  I love adore twice baked potatoes.

Twice Baked Squash Casserole 
When we were growing up, it was always a real treat if our mother made twice baked potatoes.  Or stuffed baked potatoes, and it was the same when my own family was growing up.

We all love stuffed baked potatoes, be they as simple as just mashing the insides with some milk, butter, onion and seasoning and stuffing the insides back into the skin and re-baking, or if we got really fancy and added things like cheese and leeks and such!

Twice Baked Squash Casserole 

I also make a really delicious Twice Baked Mashed Potato Casserole.  Twice Baked Mashed Potatoes is the perfect size for two people to enjoy and makes great use of store cupboard ingredients, or even leftover mashed potatoes.

Mashed potatoes, crumbled cooked bacon, minced chives, sour cream, cream cheese  . . .  a bit of cheddar on top. Its really yummy! 😋😋😋

Twice Baked Squash Casserole 
Anyways the wheels in my head started turning and I thought to myself . . .  what if I applied the same techniques to the mash potato squash?  What indeed!

The result is this fabulously tasty casserole dish that I am sharing with you today for Twice Baked Squash Casserole!  This was delicious!

Twice Baked Squash Casserole 
It boasts all of the elements of the mashed potato casserole with the exception of cream cheese. I didn't have any, but you can add some if you wish.  About 1/4 cup, or 1 ounce, would be perfect.

I also didn't use chives this time, I used finely sliced spring onions, or scallions as they are also called. They are also known as green onions.

Twice Baked Squash Casserole 
Other than that everything else was pretty much the same. I did not add milk or buttermilk because I didn't want the mixture to be sloppy.  Mashed winter squash is slightly wetter than mashed potatoes, but not much.  

But I knew adding milk would be going overboard, so don't be tempted. I also didn't add any butter and it didn't need it. 

Twice Baked Squash Casserole

Bacon bits, sour cream, spring onions, cheese and some seasoning is all I needed to add. The squash itself was nice and nutty, with some golden brown bits from the oven roasting.  

It mashed beautifully and was lovely and dry, perfect for this application.  I simply stirred everything together and banged it into a small casserole dish topping it with some more cheese and bacon bits.

Twice Baked Squash Casserole 
It baked up beautifully in the oven.  Nice and golden brown. I used a mix of cheddars, both white and orange, sharp cheddar.  Double cheddar. Double tasty. Double nice.

Out of the oven, I sprinkled a few more chopped spring onions on top as a garnish.  This was gorgeous. It made a beautiful side dish for the roast chicken and green beans I was also having.

Twice Baked Squash Casserole 
I could have very easily eaten a whole plate of this and nothing else! It was that good!!  I think I found a new favorite way to serve winter squash!

What is your favorite way to cook winter squash???  Do you have a favorite winter squash?  Any winter squashes you avoid?  Why is that?  I really want to know!  Lets talk!

Twice Baked Squash Casserole

Twice Baked Squash Casserole

Yield: 3
Author: Marie Rayner
Prep time: 5 MinCook time: 1 H & 5 MTotal time: 1 H & 10 M
This was a little something I came up with to use a mash potato squash that I had. You will need a squash that has a dry firm texture, not wet. Buttercup, Hubbard, Mash Potato and Sweet Potato Squashes all work well for this recipe.


  • 1 dry squash (1 1/2 - 2 pounds in weight) (I used mash potato squash)
  • 1/4 cup (30g) sour cream
  • 1/2 cup (60g) grated strong cheddar cheese, divided
  • 3 TBS real bacon bits
  • salt and black pepper to taste
  • 3 spring onions, washed, trimmed and thinly sliced, divided


  1. Preheat the oven to 350*F/189*C/ gas mark 4. Cut your squash in half and scoop out the seeds, discarding them.
  2. Place the squash halves, cut side down on a lightly oiled baking sheet. Roast in the preheated oven until tender. (Mine took about 40 minutes.)
  3. Remove from the oven, turn cut side up, and leave to sit for about 15 minutes, or until you can comfortably handle the squash.
  4. Scoop the flesh out into a bowl, discarding the skin. Season to taste with salt and pepper, remembering that cheese and bacon are both salty ingredients, so be judicious with the salt. Mash together with 3/4 of the cheese, 2 TBS of the bacon bits and 2/3 of the spring onions. 
  5. Spoon this mixture into a 2-cup (1 pint) buttered casserole dish.  Sprinkle the remaining cheese and bacon bits over top.
  6. Bake in the preheated oven for 20 to 25 minutes until golden brown and heated through. 
  7. Sprinkle the remaining spring onions on top and serve.
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Twice Baked Squash Casserole
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  1. This recipes looks very comforting Marie!
    I found out about spaghetti squash about a year and a half ago from a vlogger I watch (who lives in America) and thought that this a great alternative to spaghetti. The only downside is I live in North West England (Nelson) and all the big supermarkets I use do not stock it, even when in season (sept/oct) over here. I managed to source it once (from a local chain store) but then no more.
    When I did cook it, I just roasted in the oven for 45 min-to an hour, forked all the lovely insides.
    I really envy some continents at certain times of the year!
    Did you find it hard to source when you lived here?

    1. Hi Faye! It wasn't common in the major supermarket chains for sure, although I could sometimes surprisingly find it in Lidl once. I think the best bet for things like that in the UK are some of the online green grocers! Just a suggestion! xoxo

  2. Like Faye, there are no squash of any description to be found here. They sell zucchini and butternut pumpkin and that's it. I can't recall it in Australia either, though we did have spaghetti squash and a variety of other pumpkins (my favourite being Queensland Blue).

    That said, it looks and sounds so delicious.

    1. We didn’t have a lot of choice in the U.K. either Marie! I suppose it’s not really the climate for them! Too damp! It was delicious ! I wish you could taste it! Xoxo

  3. Looks delicious, a great time of year for various types of squash.

  4. I have never heard of either of these squash. I've probably seen them & just didn't know what they were. I will be looking for them & I will try this recipe! Thanks for sharing.

  5. We love squash at our house. I've never heard of the mashed potato squash, but it looks delicious! I do make spaghetti squash pretty often in the cooler months. So easy. I start it in the microwave for a few minutes so it's easier to slice off the stem end and cut in half lengthwise, remove seeds, brush inside with olive oil and turn face down on a foil-lined sheet and back till tender, then use a fork to loosen the 'spaghetti' from the shell. Good with just butter and salt and pepper, but also with pasta sauce and meatballs, or as a side for almost anything. It will still be at least a couple months for us to start having down here in the south.

    1. Sounds delicious Kath! I have a spaghetti squash on th sideboard waiting for me to do something with it! Xoxo

  6. It was incredibly good Becky! Xoxo


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