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Roasted Broccoli Casserole

This roasted broccoli casserole is a staple at our Thanksgiving and Christmas table. Make your own family tradition by whipping up a batch of this delicious side dish.

Roasted Broccoli Casserole

Roasted Broccoli Casserole

This is one of my favorite holiday and potluck side dishes. I make this for Easter. For Christmas. For Thanksgiving. Pretty much anytime I need to bring a side somewhere on an occasion where calorie counting is typically frowned upon. It is really easy to put together, and if you are even a passing fan of broccoli – you’ll love it.

Roasted Broccoli Casserole

Get the most flavor out of this dish by roasting the broccoli before you put the casserole together. Just drizzle it with some olive oil and a shake of salt and pepper in a 375 degree oven until the tops start to turn a bit brown. It took mine about 8-10 minutes.

Roasted Broccoli Casserole

Then you just put it in the baking dish and pour over the sauce you made, and top it with loads of your favorite cheeses. I used a cheddar jack mix.

Roasted Broccoli Casserole

I’m so loving my Gerber Wood Works board! The shot above was taken using the dark brown side of my new custom board. Very reasonably priced! Contact them on their Facebook page for a quote on your own custom board. (I’m not receiving anything for mentioning him, this is a local company and he’s been great to work with, and I love supporting local businesses!)

Roasted Broccoli Casserole

Want more holiday side dish ideas? I’ve got lots!

Milk Rolls
Extra Creamy Roasted Garlic Mashed Potatoes
Garlic Fry Bread
Better Than KFC Coleslaw

What are your favorite holiday dishes that you just can’t live without? I really miss buttercup squash. I used to have it every year, but it is so hard to find out here in Washington! Do you have a dish you just HAVE TO HAVE every Thanksgiving or Christmas?

Yield: 8 people

Roasted Broccoli Casserole

Roasted Broccoli Casserole

This roasted broccoli casserole is perfect for your Thanksgiving or Christmas table. Smothered in a creamy sauce and covered with cheese, even the vegetable haters in your life will love this.

Prep Time 20 minutes
Cook Time 25 minutes
Total Time 45 minutes


  • 5-6 cups fresh broccoli florets
  • 2 tablespoons olive oil
  • 1/2 cup salted butter
  • 1/4 cup diced onion
  • 1/3 cup flour
  • 3 cups whole milk
  • 1/2 teaspoon dry mustard
  • 1/4 teaspoon garlic powder
  • 1/2 teaspoon salt, or more to taste
  • 3-4 cups shredded cheddar jack cheese
  • 10-15 Ritz crackers, crushed
  • 3 tablespoons butter, melted


  1. Preheat oven to 375. Place broccoli on a large baking sheet and lightly drizzle with olive oil. Roast for 7-10 minutes, or until broccoli is starting to get a little brown in small spots. You don't want it fully cooked, but you want some roasty flavor.
  2. Melt butter in a medium saute pan. Add onion, and saute over medium low heat for 4-5 minutes. Whisk in flour, and reduce heat to low. Continue cooking for 5 minutes, stirring frequently.
  3. Add milk, dry mustard, garlic powder, and salt. Whisk to combine, and cook over medium-low heat until the mixture is slightly thickened. Remove from heat and stir in 1 cup of cheese.
  4. Place broccoli in a large baking pan. Pour cheese sauce over the top. Top with the rest of the cheese.
  5. Combine butter and melted butter. Sprinkle over the cheese, and bake at 325 for 30 minutes, or until the cheese is melted and bubbly and the broccoli is tender.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 631Total Fat: 45gSaturated Fat: 24gTrans Fat: 1gUnsaturated Fat: 16gCholesterol: 119mgSodium: 918mgCarbohydrates: 32gFiber: 11gSugar: 8gProtein: 31g

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35 NEW Thanksgiving Side Dishes - Yellow Bliss Road

Sunday 9th of October 2016

[…] Roasted Broccoli Casserole […]

Sarah Mueller

Wednesday 7th of October 2015

Looks yummy! Your link to the wood board links to W3Schools - just thought you'd like to know.

Nicole Johnson

Wednesday 7th of October 2015

Thank you Sarah!! I fixed the link. I am not sure how that happened! Its fixed now.

Nancy P.@thebittersideofsweet

Monday 27th of April 2015

This is the ultimate side dish! Sounds amazing!

Cate | Chez CateyLou

Sunday 26th of April 2015

I love broccoli, and smothering it with cheese makes it even better! I love the idea of roasting the broccoli first, great flavor! Also, thanks for the tip on the boards. Going to check that out now!

Ashlyn @ Belle of the Kitchen

Saturday 25th of April 2015

Roasting broccoli is my new favorite way to prepare it! And THIS sounds too easy and good for me not to make it this week! I see this in my dinner table's future. ;)

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