Pumpkin gratin with a Japanese twist! Filled with onions, mushrooms, edamame and sweet corn in a creamy white sauce, topped with cheese and baked to perfection. This kabocha gratin is the ultimate comfort food and perfect for the autumn and winter season.

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Whole Kabocha Gratin


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5 from 22 reviews

  • Author: Lisa Kitahara
  • Total Time: 40 minutes
  • Yield: 2 servings 1x

Description

Pumpkin gratin with a Japanese twist! Filled with onions, mushrooms, edamame and sweet corn in a creamy white sauce, topped with cheese and baked to perfection. This kabocha gratin is the ultimate comfort food and perfect for the autumn and winter season. 


Ingredients

Units Scale
  • 1 3 1/2 lbs (1470g) kabocha squash*
  • 1 small onion (100g), sliced
  • 1 sausage (50g)
  • 2 cups (130g) shimeji mushrooms
  • 3 tbsp (45g) butter
  • 1/2 cup (90g) canned corn
  • 1/3 (50g) edamame
  • 1 1/2 cups (350ml) soy milk
  • 1 tbsp (20g) miso paste
  • 3 tbsp (23g) all purpose flour
  • salt and pepper to taste
  • 1/2 cup + 2 tbsp (80g +20g) mozzarella cheese, divided
  • parsley, for garnish

Instructions

  1. Scrub and wash the kabocha. Dry with a towel and then wrap with cling wrap. Microwave for 5 minutes at 600W. Flip and microwave for another 5 minutes, or until tender to the touch.
  2. Once cooled enough to handle, slice off the top of the kabocha (so it looks like a lid). Scoop out the seeds and set aside.
  3. Over medium high, add butter and cook the onions for 1 minute. Add the sausage and cook until onions are semi-translucent. Add mushrooms and cook for another minute or until softened. Add the flour and fry for another minute. Turn off the heat and pour the soy milk in 3 increments, stirring each time so it does not get clumpy. Turn the heat back on and stir. Add the corn, edamame, 2 tbsp cheese, salt and pepper. Mix again until everything is well combined. Taste and add season to your liking.
  4. Ladle the filling into the kabocha. Add cheese on top and bake at 400 (204 C)F for 10 minutes or until cheese has melted and kabocha is tender.
  5. Torch the cheese (optional step), sprinkle fresh or dried parsley on top for garnish. Serve immediently and enjoy!

Notes

  • Helpful Equipment: culinary blow torch
  • Nutritional Information Disclaimer: Nutrition information is a rough estimate calculated on an online tool (Cronometer). 
  • Prep Time: 10 minutes
  • Cook Time: 30 minutes
  • Category: entree
  • Method: stove top, baking
  • Cuisine: vegan, japanese

Nutrition

  • Serving Size: 1 serving

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Konnichiwa

About Lisa

I'm Lisa, a home cook, recipe developer and founder of Okonomi Kitchen. Here, you'll find a mix of classic and modernized Japanese recipes, and creative, plant-forward meal inspiration using seasonal ingredients. I hope to share more about Japanese cuisine and culture through food and recipes.


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27 Comments

  1. This was the most ultimate vegan comfort food. Came together really quick and all the ingredients were not too expensive either. So yummy. Love her page on insta as well! Always checking it out for new ideas and I get lost for hours🙈 thank you for the inspiration Lisa!

  2. My husband and I had this for dinner last night and it was amazing! We never realized how good this combo is and would definitely make again for dinner!






  3. I tried this for the first time yesterday, and it was SO GOOD. I was nervous about stuffing the kabocha whole, but it was just as easy as it looks on Instagram. Will 100% make again!






  4. This is absolutely amazing. My boyfriend and I were so happy to have this for dinner last night! Everything was so easy to prepare 🙂

    Thank you!!






  5. Not only was this super easy to make, it was fun and filling! I made this for two and it was the perfect fall meal— a perfect pre-game for thanksgiving!






  6. Had changed the receipt ingredient a bit since I just use whatever is in the fridge. But this amazing dish just made my day, because I really dislike cooking, and when I cook something that hubby and the toddler finally likes it! It’s just makes me so happy 😀 and hubby loved it! It was so delicious 🤤 thank you for sharing the receipt!






  7. A unique twist to a dish my mom used to make growing up! I always had kabocha steamed, but this recipe was on another level. It was incredibly delicious- the miso flavor went well with all the veggies. Happy it turned out creamy, mouth-watering, and filling!






  8. This recipe is, honestly, shockingly easy, but it’s also incredible. I added a little extra cheese to the filling just because I love cheesey gooeyness, but that’s the only alteration I made, which is unusual for vegan recipes. I used the spicy Impossible sausage for the sausage, which worked wonderfully. My spouse loved it, and even my 4 year old was eyeing it with a bit of jealousy.






  9. Delicious both to the mouth and the eyes! Amazing how a dollop of miso could add so much flavor. Will definitely make it again!






  10. Delicious both to the mount and eyes! Amazing how a dollop of miso made it so flavorful. Will definitely make it again!