Broccoli Casserole In A Slow Cooker

This post may contain affiliate links, please see our disclosure policy for details.

Mom's Crockpot Broccoli Casserole is a comfort food classic. It's creamy, cheesy, and so easy to make. You can serve it as a side dish or a main dish with rice!

This recipe serves 12 and costs $9.69. That's just 81¢ per serving! It is a tried and true recipe that has stood the test of time as our Mom has been making it for over 30 years.

Serve it with our Instant Pot Turkey Breast , 1-Hour Dinner Rolls , and our French Bread Stuffing Recipe for the perfect holiday gathering or family dinner.

Finished slow cooker broccoli casserole with text overlay for Pinterest.

Crockpot Broccoli Casserole

Today we are sharing our Mom's recipe with you. Jill remembers her making it every Thanksgiving and Christmas. It just was not a holiday feast if the broccoli and cheese casserole was not on the table.

Mom would even make it for Dad's work holiday potlucks. This broccoli casserole recipe is one that is super easy to make, and everyone loves.

Putting veggies, especially broccoli, into your slow cooker is GENIUS because they hold their shape so well. You can prepare this broccoli casserole in the morning, turn the crockpot on, and focus on the other things you need to do throughout the day. Doing this also gives you extra space in your oven and on your stove-top!

Here's the best part, in addition to how easy it is to make this dish, the cleanup is even easier! Putting the foil in the slow cooker insert first makes sure the casserole doesn't burn on the edges. But more importantly, it makes washing the crockpot a cinch.

The list of benefits for making this Cheesy Broccoli Casserole in the crockpot goes on and on. We know this will become one of your favorite recipes that you will come back to for holiday parties and weeknight meals throughout the years to come.

A close up of broccoli casserole still in the crockpot.

Can you freeze broccoli casserole after cooking?

Broccoli is one of the best vegetables to cook! Not only is it healthy, but it is also an extremely forgiving vegetable.

You can cook it in the microwave, steam it, roast it, or put it in the slow cooker. It's super versatile. It also freezes well.

Superfood status right there. What can't broccoli do?!

How do you reheat frozen broccoli casserole?

Remove the frozen broccoli casserole from the freezer to defrost while preheating the oven to 350 degrees. After the dish has thawed, loosely cover it with foil and bake for about 20-30 minutes.

It will take longer if the casserole is still frozen.

Can I substitute fresh broccoli for frozen in a casserole?

Absolutely! We all know fresh broccoli is delicious. You can easily substitute fresh for the frozen broccoli within this recipe.

How much will this Slow Cooker Broccoli Casserole cost to make:

An overhead picture of all of the ingredients needed to make the broccoli casserole.

RECIPE COST: $9.69

PRICE PER SERVING: $0.81

4 (10 oz) packages frozen broccoli – $4.00
2 (10 3/4 oz cans) condensed cream of celery soup – $1.52
2 1/2 cups grated sharp cheddar cheese – $3.20
1/4 cup green onion – $0.25
1 1/2 cup crushed Ritz crackers – $0.72

To find out more about how we price our recipes, check out Budget Recipes Explained .

How to make Slow Cooker Broccoli Casserole recipe:

STEP ONE: Make a foil collar for the crockpot and line inside of the crockpot insert.

STEP TWO: In a large bowl, add broccoli, celery soup, 2 cups of cheese, and green onions. You will then want to toss until the broccoli is coated.

Picture collage with text overlay.

STEP THREE: Pour mixture into the prepared slow cooker. Then, sprinkle top with crushed crackers and remaining 1/2 cup of cheese.

STEP FOUR: Cover with lid. One tip for you to help with venting while cooking is to slip a wooden toothpick between the lid and pot. Cook on low for 5 hours or High for 2 1/2 hours.

Picture collage with text overlay.

Cook's Tools:

slow cooker
tin foil
large bowl
mixing spoon
measuring cups

The Flavor and Recipe Variations

Instead of cream of celery soup, you can use cream of mushroom or cream of chicken.

Sometimes I like to make this recipe using half cauliflower and half broccoli.

How long is it good for:

Serve : As with most recipes with dairy products in them, you shouldn't leave this Broccoli Casserole out for longer than 2 hours.

Store: Transfer leftovers to an airtight container and keep them in the refrigerator for up to 4 days.

Freeze: You can freeze the cooked casserole in an airtight container for 3-4 months.

How to get the kids involved with this recipe:

A little boy crushing up crackers in a Ziplock bag.

Ages 2-3: Let them help crush the crackers and sprinkle them on top. They will love getting to crush the crackers on purpose (see the picture above)!

Ages 4-5: Have your little one help toss the ingredients together in the bowl.

Ages 6-8: Teach them how to insert the foil into the crockpot. Also, teach them how to turn on and set the crockpot. Learning this technique will help with future recipes as well.

Ages 9-11: Supervise them while they prepare the entire recipe. Remember to have them read it twice before beginning the recipe.

Ages 12+: Let them prepare the entire recipe, unsupervised, while you do the happy dance in the corner!

What to Serve with Mom's Crockpot Broccoli Casserole:

1-Hour Dinner Rolls
Beef Chuck Roast
Brown Sugar Glazed Carrots
Cranberry Party Punch
Easy Orange Cranberry Sauce
French-Bread Stuffing Recipe
Green Beans Almondine
Instant Pot Honey Baked Ham
Instant Pot Turkey Breast
Naughty Mashed Potatoes

More $10 recipes:

BBQ Chicken Braid
Copycat Olive Garden Fettuccine Alfredo
Homemade Sloppy Joes
Inside Out Chicken Pot Pie
Panda Express Orange Chicken Copycat

A close up picture of cheesy broccoli casserole.

Crockpot Broccoli Casserole

Recipe Cost 9.69

Serving Cost 0.81

Course Side Dish

Cuisine American

Mom's Crockpot Broccoli Casserole is a comfort food classic that our family has been making for over 30 years! It's creamy, cheesy, and so easy to make. You can serve it as a side dish or a main dish with rice!

Servings: 12 people

Cook Mode Prevent your screen from going dark

Prep Time 10 mins

Cook Time 5 hrs

Total Time 5 hrs 10 mins

crockpot
tin foil
large bowl
mixing spoon
measuring cups

2 10.75 oz cans condensed cream of celery soup
2 ½ cups grated sharp cheddar cheese divided
¼ cup green onion sliced thin
40 ozs (about 12 cups) frozen broccoli thawed
1 ½ cup crushed Ritz crackers

Make foil collar for crockpot by folding 2 pieces of foil to make 2 strips measuring approximately 18x14-inches each. Line inside of crockpot insert with foil strips and spray with nonstick cooking spray.
In a large bowl add celery soup, 2 cups of cheese, and green onions and stir until combined.
Add broccoli and stir until the broccoli is evenly coated.
Pour mixture into the prepared slow cooker.
Sprinkle top with crushed crackers and remaining 1/2 cup of cheese.
Cover with lid and slip a wooden toothpick between lid and pot to vent while cooking. Cook on LOW for 5 hours or HIGH for 2 1/2 hours.