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Butternut Squash and Wild Mushroom Au Gratin


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Butternut Squash and Wild Mushroom Au Gratin


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Butternut Squash and Wild Mushroom Au Gratin

The small amount of creamy ricotta makes this a gratin and really adds a depth of flavor to this hearty, healthy dish. The oyster mushrooms get crispy and delicious and this is the perfect make ahead recipe for any night. It might be a great fall recipe, but I would eat it any time.


  • Prep Time : 25 min
  • Cook Time : 1 hour
  • Ready Time : 1 hour, 25 min


6 Servings


  • 3 tablespoons olive oil
  • 2 thinly sliced green onions
  • 8 ounces shiitake or black mushrooms, sliced
  • 1 tablespoon sage
  • 8 cups dice Butternut squash from one large squash
  • 1/2 teaspoon salt
  • 2 ounce Natural & Kosher Parmesan cheese, grated
  • 1/4 cup Natural & Kosher Ricotta
  • 6 ounce oyster mushrooms, sliced


Saute 2 tablespoons oil – add 2 green onions and 8 oz. sliced shiitakes or black mushrooms. Add sage – cook 6 minutes.  Or until browned.  Add butternut squash.  Saute 10-15 minutes, until browned and somewhat soft.

Turn off heat, add salt, 1 ounce Parmesan, ¼ cup ricotta, and black pepper, stirring well.  Spoon into a casserole or keep in large frying oven safe frying pan.  Cover and cook for 1 hour.

Combine Parmesan and oyster mushrooms with a tablespoonful of oil, sprinkle over gratin and broil 6 minutes.

Butternut Squash Gratin



Servings Per Recipe: 6 Servings

Amount Per Serving

  • Calories: 240
  • Total Fat: 11g
  • Cholesterol: 13mg
  • Sodium: 462mg
  • Total Carbs: 30g
  •     Dietary Fiber: 6g
  • Protein: 9g


About Tamar Genger MA, RD


Tamar lives in New York and is the mother of three amazing children, a Registered Dietitian, professor of Nutrition, and as you can probably guess, a foodie! Tamar loves to travel with her family and visits kosher restaurants wherever she goes. Although she loves the sights, she spends more time talking about the restaurants and food she ate! As a mom and a nutritionist, Tamar tries to balance her passion for healthy cooking with her insatiable desire for chocolate!




One Response to Butternut Squash and Wild Mushroom Au Gratin

  1. avatar says: mommyray

    This dish had a pretty presentation. Could you please include in the recipe the amount of pepper in the ingredient list and the heat at which you should saute the vegetables (I did mine on medium high and it seemed about right)? Also it doesn’t say in the recipe the temperature for the oven. Thanks for this new way to make squash!

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