Chicken and Mushroom Stuffed Acorn Squash

stuffed acorn squash on a wooden board with squash in the background

These healthy Chicken and Mushroom Stuffed Acorn Squash are filled with a savory combination of chicken, asparagus, chanterelles, herbs and parmesan cheese. Perfect for the fall season! Leave out the chicken if you wish. Also makes a great Thanksgiving side dish!

How to cut Acorn Squash – Two Ways!

You can cut the acorn squash in two ways – vertical or horizontal. Make sure the acorn squash is dry, you don’t want it slipping out of your hands. Use a very sharp big knife. I have a new one I recently purchased which I love called a Santoku Knife (paid link) . It’s a combination of a western style and Asian style knife. It’s great for chopping vegetables, meats and fish.

knife on a wooden cutting board
My new favorite knife!
acorn squash with ends cut off on a wooden cutting board with knife

If you are cutting the squash horizontally, then you need to trim off the bottom so that it sits flat on the baking sheet (paid link). Then trim off the top and cut squash in half.

acorn squash cut vertically with knife on a cutting board

This is my favorite way to serve the squash. I think it looks prettier cut this way.

acorn squash cut in half on a baking sheet

But you can cut the acorn squash in the more traditional way as well.

How to make stuffed acorn squash in pictures:

acorn squash cut in half on a baking sheet with parchment paper, olive oil, salt, seeds, knife in background

With a good sharp knife (like the Santoku knife (paid link) pictured above in the post) cut the squash in half either vertically or horizontally. Check out the tips above for cutting horizontally. Spray the cut squash with olive oil spray (paid link) and then sprinkle with kosher salt (paid link) and pepper.

cut acorn squash turned upside down on parchment paper

Turn squash upside down and bake at 425° until done about 30-40 minutes. You should be able to easily tear away the squash from the skin with a fork.

chanterelles, onions, garlic, asparagus, kale on a wooden cutting board

Gather the vegetables. Chanterelles are my favorite but other kinds of mushrooms work well too. Cut the vegetables in small pieces.

skillet with mushrooms, asparagus, onion and herbs with a wooden spoon

Spray a nonstick skillet (paid link) with olive oil spray (paid link). Sauté the vegetables, garlic and herbs until almost done about 10 minutes on medium heat.

raw chicken pieces in vegetables in a skillet with wooden spoon

Add the chicken and cook until the chicken is done.

cut squash on a baking sheet, 3 of them filled with chicken mixture, skillet on left side with chicken mixture

Stuff the baked acorn squash with the filling. Top with bacon bits and parmesan cheese. Broil for a minute or until cheese melts.

stuffed acorn squash on a wooden board with squash in the background
These stuffed acorn squash make the perfect low carb, low calorie meal for the fall. Make it without the meat for a great Thanksgiving side dish and serve it in a larger sized squash or even a pumpkin!

How to make this recipe ahead of time

You can make the filling up ahead of time and store it in the refrigerator. About 40 minutes before serving, bake the squash. Reheat the filling in the skillet or microwave. Stuff the squash when done, sprinkle with parmesan cheese and broil until melted.

Delicious healthy stuffed Delicata squash with spicy chicken sausage and cranberries from Gourmet Done Skinny with Delicata squash in the background

If you like this recipe, you’ll love Delicata Squash with Spicy Chicken Sausage!


Healthy Chicken and Mushroom Stuffed Acorn Squash

Amy Lawrence
These Chicken and Mushroom Stuffed Acorn Squash are filled with a savory combination of chicken, chanterelles, herbs and parmesan cheese. Perfect for the fall season! Leave out the chicken if you wish.  Also makes a great Thanksgiving side dish! 
Weight Watchers Points: 5 Smart Points for all plans
Prep Time 15 mins
Cook Time 40 mins
Course Main/Side
Cuisine American
Servings 4
Calories 338 kcal


  • 2 big or 4 small acorn squash either cut the tops off or in half, see post for more details
  • olive oil spray or brush with olive oil
  • 1 lb chicken thighs skinless, boneless, chopped into bite size pieces
  • 1 t. oil
  • 1/2 sweet onion finely chopped
  • 3 cloves garlic finely minced
  • 2 leaves of fresh kale or spinach leaves chopped (about 1 c.)
  • 1 lb. mushrooms chopped, (depending on the season, I love to use chanterelles)
  • 2 c. fresh asparagus chopped in bite size pieces (see notes at bottom)
  • 1 T. thyme
  • 1/2 T. tarragon
  • 4 T. bacon crumbles or pieces of cooked bacon
  • 2 T. parmesan cheese shredded
  • kosher salt
  • freshly cracked pepper


  • Preheat oven to 425°.
  • Carefully slice acorn squash in half with a big knife (I like to use my Santoku knife ). Scoop out the seeds and pulp.
  • Spray each half with olive oil spray. Sprinkle with kosher salt and pepper.
  • Turn squash upside down (or cut side down) and place on a baking sheet. (I line mine with parchment paper for quick and easy clean up).
  • Bake squash for 35-40 minutes or until done with a fork. You should be able to easily tear away the squash from the skin with a fork.
  • While squash is baking, make the filling. Heat a medium nonstick pan on medium heat.
  • Spray pan with olive oil spray or use a little oil.  Add onion, mushrooms, garlic, asparagus, thyme and tarragon.  Sauté for about 5 minutes on medium heat.
  • When the asparagus is mostly cooked, add chicken pieces and cook until chicken is done about 10 minutes. Season to taste. Add in shredded kale.
  • Stuff each acorn squash with filling. Top each with crumbled bacon and 1/2 T. shredded cheese.
  • Bake/broil a few minutes more until cheese is melted (if desired).


If you can't find asparagus this time of year, feel free to substitute other vegetables - root vegetables work well. Or use more mushrooms.
If cutting acorn squash is too difficult for you, try using Delicata squash. They are much easier to cut!


Serving: 1stuffed acorn squashCalories: 338kcalCarbohydrates: 32.4gProtein: 32.6gFat: 10.4gSaturated Fat: 3.2gPolyunsaturated Fat: 1.7gMonounsaturated Fat: 3.6gCholesterol: 118.3mgSodium: 872.9mgPotassium: 1596.5mgSugar: 4.5gVitamin A: 100IUVitamin C: 37.9mgCalcium: 152.4mgIron: 4.8mg
Keyword chanterelles, healthy chicken and mushroom, Santoku knife, stuffed acorn squash
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Amy Lawrence

Amy Lawrence is passionate about good food, losing and maintaining weight. She has combined her talents and love of cooking to produce delicious healthy recipes to help her followers stay on track. A military brat who has lived all over the U.S and Germany is an example for women who have had many successful careers in life, including special ed teacher, tea room owner, cookbook author, and publisher.

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