Crock Pot Squash Casserole

Jump to Recipe

Enjoy a delicious summer casserole with yellow squash and zucchini straight from your garden. This easy Crock Pot Squash Casserole is a perfect side dish for any summer gathering.

Try it today and savor the fresh flavors of the summer season!

Summer Squash Casserole Ingredients

Here is a quick look at the ingredient list and instructions. You can find the full ingredient quantities and full directions in the recipe card below. P. S. You can also save your favorite recipes to your personal recipe box! ⬇️

Squash Casserole ingredients in small bowls.

sliced fresh squash: use a combination of ripe unblemished yellow bottleneck squash and zucchini.
diced sweet bell peppers: use red, green or yellow sweet bell pepper.
chopped onion: I like to use Vidalia onions for their sweet and mellow onion flavor but a white, yellow or even red onion can be used.
sliced celery: if you have picky eater you can slice the celery very thin.
minced garlic: fresh minced garlic or jarred garlic.
shredded cheese: shredded pepper jack cheese adds a nice little spicy flavor or white cheddar cheese.
canned cream soup: cream of celery or chicken soup.
seasonings: ground black pepper and salt.
boxed stuffing mix: the Savory Herb Stuffing mix adds more seasonings to flavor the casserole. In a pinch you could use any flavor of stuffing mix but you may need to adjust the seasonings.
unsalted butter: the butter will be used to fluff and flavor the stuffing mix.

📌Pro Recipe Tip

📌To save time you can slice, chop and mince all the vegetables the night before.

Directions

Step 1: Layer the sliced yellow and zucchini squash in the bottom of an 8 quart crock pot. Cut the larger pieces in half.

Sliced yellow squash and green zucchini in the crock pot.

Step 2: Add the diced bell pepper, chopped onion, sliced celery and minced garlic.

Sliced, diced and minced vegetables for a summer squash casserole.

Step 3: Use a large wooden spoon to toss the ingredients together.

📌Pro Slow Cooking Tip

📌Mixing the ingredients together is easier if you do it in layers. This helps insure that the ingredients are evenly combined in the crock pot.

Step 4: Melt ½ cup of butter in a bowl and add the stuffing mix. Toss well to combine. Use a fork to fluff the stuffing mix as you mix it with the butter. Remove one cup of the stuffing mix and set aside for later. (not shown)

Step 5: Add the canned cream soup, shredded cheese, salt and pepper.

Cream soup and cheese squash casserole ingredients before slow cooking.

Stir with a large wooden spoon to blend the soup, cheese and seasoning with the vegetables.

Step 6: Add the larger amount of stuffing mix to the crock pot and stir well to evenly combine all of the ingredients. Save the remaining cup to used as a topping before serving.

Mixing the crock pot casserole ingredients in 4 steps with photos.

Step 7: Place the lid on the slow cooker. Slow cook on high for 3 hours or low for 4 to 5 hours or until the yellow squash and zucchini slices are cooked tender.

Tender yellow squash casserole in the crock pot after slow cooking.

📌Pro Squash Casserole Tip

📌 The squash casserole is done when the sliced squash is tender but still holds its shape.

Squash Casserole Topping

Step 8: The herb stuffing mix adds a nice crunchy texture to the top of a summer squash casserole. You can sprinkle the top of the casserole with the remaining one cup of stuffing mix and serve it right from the slow cooker.

Or you can do as I have done and transfer the hot casserole to a casserole baking dish for a prettier presentation.

Crock Pot Summer Squash Casserole in a casserole serving dish.

Crock pot summer squash casserole is a nutritious and delicious way to add in season fresh summer squash into your meals.

With the combination of herbs and cheese, this casserole recipe is sure to please without taking up too much of your time.

Cooking this easy summer side dish in the crock pot makes it even easier to enjoy squash all summer long without using the oven!

Recipe FAQs

Should summer squash be peeled before cooking?

Peeling summer squash before cooking is a personal preference. The peel of yellow squash and zucchini squash is very thin. When cooked it becomes very tender. You can skip peeling summer squash before you cook it unless the recipe specifically calls for peeled squash.

What can I do with mature summer squash?

Ripe summer squash can be used in many recipes. Squash casserole is a very flavorful way to use ripe summer squash. If the squash is very large the seeds may be large and unappetizing. Scoop the large seeds out and use the squash like you would normally.

Do you need to preheat slow cooker?

A slow cooker does not need to be preheated before using. Matter of fact a preheated slow cooker crock will develop a crack if you add cold ingredients to the hot ceramic crock.

📌Pro Slow Cooker Tip

Slice the vegetables evenly.
It might look like there isn't enough liquids in the recipe but there is. The vegetables will release liquids and thin the casserole sauce.
Tossing the vegetables together before adding the cream soup makes it easier to evenly combine the vegetables before adding the thick soup.
Use a Casserole slow cooker to speed the cooking time up.
Stir half way through the cooking time so the squash cooks evenly.
I like to wait until the casserole is finished cooking to add the stuffing topping so it doesn't get soggy. For an even crunchier topping toss the 1 cup of stuffing into a hot skillet and heat over medium heat until it browns and gets crunchy.