Slow Cooker Zucchini
3 CommentsUpdated May 06, 2026
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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.
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.
This is an easy, hands-off way to enjoy tender, flavorful veggies with almost no prep. Just slice, season, and let the slow cooker do the work—no need to turn on the oven or stand over the stove. It’s perfect for busy weeknights, summer dinners, or anytime you want a simple side dish that goes with just about everything.
You should also try my slow cooker zucchini bread and slow cooker zucchini soup recipes.
Ingredients to make a Zucchini Side Dish
For this recipe, you’ll need a mix of zucchini and yellow squash—about three of each, but the amounts don’t need to be exact. Sliced yellow onion adds depth and complements the squash nicely. A simple blend of salt, black pepper, and dried basil gives the vegetables plenty of flavor without overpowering them. Butter helps everything cook down perfectly and adds just the right touch of richness.
How to Make Zucchini in the Slow Cooker
Here is how to do it in three easy steps:
Step One – Cut the zucchini and squash into thick rounds and place them in the slow cooker.
Step Two – Add the sliced onion, sprinkle on the seasonings, and toss everything to coat. Dot the top with small cubes of butter.
Step Three – Cover and cook on HIGH for about 2.5 hours, or until tender. Give it a stir before serving and season more to taste if needed.
What to serve with this
- When serving this delicious side, consider pairing it with hearty food like slow cooked brisket with red wine, 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 for a full vegetarian meal.
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.
Slow Cooker Zucchini and Yellow Squash
Grant Us "Google Trust"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
Nutrition
Nutrition info is auto-generated. This information is an estimate; if you are on a special diet, please use your own calculations.
More Sqaush Slow Cooker Recipes
Slow Cooker Spaghetti Squash is great as a low-effort, low-carb base for sauces or toppings, while Butternut Squash Beef Stew turns simple ingredients into a hearty, satisfying meal.
For something cozy and seasonal, try Slow Cooker Acorn Squash or a warm bowl of Butternut Squash Soup—both are perfect for fall.
Or keep it simple with Slow Cooker Butternut Squash as an easy, tender side dish that goes with almost anything.
Can you add fresh Roma tomatoes?
What about If I don’t want the seeds, as I can’t eat them>
you could cut down the middle and scrape out the seeds as you would a cucumber.