Slow Cooker Zucchini and Yellow Squash


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This Slow Cooker Zucchini and Yellow Squash recipe calls for just a few ingredients, a short prep time, and perfect cooking time for a side dish your whole family will enjoy. The best part is you’ll toss everything into your crockpot and let it do all of the work!

Pair this yellow squash and zucchini crock pot recipe alongside my Slow Cooker Steak Bites and Slow Cooker Cornbread for a tasty, full-course meal.

Close up of zucchini and squash with onion in a slow cooker.
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Can I cook zucchini and squash in a slow cooker?

Slow cooker recipes like this are perfect for sliced vegetables like chopped zucchini and squash. Slow-cooking simple ingredients like these fresh veggies not only takes the guesswork out of cooking them, but it’s also a healthy recipe that can pair with just about any main course dish.

Other recipes that require the stovetop may be just as easy and delicious; however, they require you to stand over the stove, stirring often, and wait for the perfectly cooked finish.

Recipe Ingredients

Ingredients for zucchini on a table with text labels of the ingredients.
  • Zucchini and Squash: You’ll need about 3 medium-sized of each, but you can use more or less. You should also try my slow cooker zucchini bread and slow cooker zucchini soup recipes.
  • Seasonings: Salt, black pepper, and dried basil leaves are the basic seasonings that pair perfectly for veggie dishes like this.
  • Onion: A yellow onion (sliced) adds the right amount of flavor in addition to a little heartiness.
  • Butter: I prefer salted butter, but you can also use unsalted butter.
  • (The full Recipe is in the recipe card below the photos)

Step-by-Step Directions

Three images showing how to make zucchini, squash and onions in a slow cooker.

Step One – Slice the zucchini and squash into 1-inch rounds and add them to the crockpot.

Step Two – Add the onion and sprinkle over the seasoning. Toss the zucchini mixture together with clean hands. Add the remaining ingredients (butter cubes) on top of the zucchini and squash.

Step Three – Cover and cook on HIGH for 2.5 hours. Stir and serve. Add additional salt and pepper if desired. Enjoy!

Cooked zucchini and squash in a slow cooker.

What to serve with this

  • When serving this delicious side, consider pairing it with hearty food like slow cooker brisket, slow cooker meatloaf, slow cooker whole chicken, or slow cooker chicken breast.
  • You can also serve this great recipe with pasta (think rigatoni pasta) and marinara sauce, cauliflower rice, on top of a salad with diced tomatoes, or on top of a baked potato.
  • Serve with extra seasonings, such as fresh parsley, shredded parmesan cheese, garlic powder, onion powder, Italian seasoning, and olive oil.

Flavor Substitution Trick

Instead of my seasoning choices, you can use cajun seasoning OR lemon pepper seasoning. Use your favorite seasoning blend and make the recipe your own.

Plate of squash with for beside it.

Recipe FAQs

Can I freeze this easy slow cooker recipe?

I do not recommend freezing the leftovers as they become mushy.

Can I cook on low?

I recommend using the HIGH cook mode to keep the cooking time shorter and it prevents the vegetables from getting mushy.

How do I store leftovers?

Store any remaining zucchini and squash in an airtight container and keep in the fridge for up to 4 days. Reheat them over medium heat on the stove top.

I noticed there isn’t a liquid in the recipe notes, do I not need to add any?

The butter is the liquid in the recipe and the vegetables will create their own liquid.

Is this considered a low carb dish?

Yes. It can also be considered gluten-free.

Cooked zucchini on a white plate with a fork.

More Slow Cooker Recipes with Squash

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Close up of zucchini and squash with onion in a slow cooker.

Slow Cooker Zucchini and Yellow Squash

Prep Time: 5 minutes
Cook Time: 2 hours 30 minutes
Total Time: 2 hours 35 minutes
Servings: 6
Seasonal veggies come together with butter, salt, pepper, and dried basil leaves for a quick, easy, and healthy side dish that tastes absolutely delicious.

Ingredients  

  • 3 medium zucchini, (can use more or less)
  • 3 medium yellow squash, (can use more or less)
  • 1/2 cup yellow onion , sliced
  • 3/4 tsp. salt
  • 1/4 tsp. pepper
  • 1 tsp. dried basil leaves
  • 1/4 cup salted butter, cubed small

Instructions 

  • Slice the zucchini and squash into 1 inch rounds. If your squash is very large, you can slice them in half moons.
  • Add the onion and sprinkle over the seasoning. Toss everything together with clean hands.
  • Add the butter cubes on top of the zucchini and squash.
  • Cover and cook on HIGH for 2.5 hours.
  • Stir and serve. Add additional salt and pepper if desired.

Sarah’s Notes

  • This recipe is very forgiving! You can cook more or less squash if desired. Add more or less butter! You can’t mess it up.
  • Keep an eye on the squash towards the end of the cooking time; every slow cooker cooks at a different temperature, and squash can overcook quickly.
  • Store any remaining zucchini and squash in an airtight container and keep in the fridge for up to 4 days. Reheat them over medium heat on the stove top.
  • I do not recommend freezing the leftovers as they become mushy.

Nutrition

Calories: 106kcal | Carbohydrates: 8g | Protein: 3g | Fat: 8g | Saturated Fat: 5g | Polyunsaturated Fat: 0.5g | Monounsaturated Fat: 2g | Trans Fat: 0.3g | Cholesterol: 20mg | Sodium: 362mg | Potassium: 540mg | Fiber: 2g | Sugar: 5g | Vitamin A: 630IU | Vitamin C: 35mg | Calcium: 40mg | Iron: 1mg

Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.

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2 Comments

  1. Connie E Turner says:

    What about If I don’t want the seeds, as I can’t eat them>

    1. Sarah Olson says:

      you could cut down the middle and scrape out the seeds as you would a cucumber.