Learn how to make spaghetti squash in the crockpot slow cooker for a super easy healthy dish that can be transformed into a low-carb dinner.

spaghetti squash with marinara sauce

Why Spaghetti Squash?

Spaghetti squash gets its name from the fact that the inside of the squash transforms into stringy squash strands once its cooked, very much like spaghetti noodles. It is a magical vegetable if you’ve never had it. It’s a gluten-free, grain-free, and low-carb alternative to cooked pasta.

uncooked spaghetti squash

How to Cook Spaghetti Squash

My only complaint about spaghetti squash is how difficult they are to cut before they’re cooked. That’s why I always cook them whole in the crockpot. Once they’re fully cooked, you can easily cut them and not have to worry about cutting yourself. (See how to cook a spaghetti squash in an Instant Pot pressure cooker).

The basic steps are to wash the squash, prick it a few times all over with a sharp knife, and then pop it in the crockpot with a cup of water.

spaghetti squash in the crockpot

My squash was of medium size and I cooked it on high for a total of five hours:

Crockpot Spaghetti Squash from Carrie on Living | www.cleaneatingkitchen.com

It was so soft that it literally almost fell apart when I sliced it:

Crockpot Spaghetti Squash from Carrie on Living | www.cleaneatingkitchen.com

I removed the seeds with a spoon and then used a fork to simply scoop out the “spaghetti” shreds:

spaghetti squash noodles

How to Serve It

There are so many things you can do with cooked spaghetti squash! My favorite thing to do is top it with cooked marinara sauce. You can add grass-fed ground beef to add protein (use crumbled tempeh for a plant-based version).

cooked spaghetti squash with marinara sauce

Here’s my printable recipe:


Crockpot Spaghetti Squash

crockpot spaghetti squash in a glass bowl

Here’s how to cook a whole spaghetti squash in the crockpot.

  • Author: Carrie Forrest, MBA, MPH in Nutrition
  • Prep Time: 5 minutes
  • Cook Time: 6 hours
  • Total Time: 6 hours 5 minutes
  • Yield: 4 1x
  • Category: Main Dish or Side Dish
  • Method: crockpot
  • Cuisine: vegan, paleo, healthy


  • 1 medium spaghetti squash, whole
  • 1 cup water


  1. Wash and pat dry the spaghetti squash.
  2. Use a sharp knife to make 15-20 pricks all over the squash.
  3. Place the squash in a large crockpot with 1 cup of water.
  4. Cover and cook on high for 5 hours or low for 8 hours.
  5. Use tongs to remove the squash from the crockpot when finished cooking.
  6. Cut open with a knife, scoop out the seeds, and use a fork to shred the squash.
  7. Serve hot with your choice of topping.


Refrigerate any leftovers in a tightly sealed container for up to 4 days.

Keywords: spaghetti squash cooking tips, slow cooker spaghetti squash, crockpot whole squash


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