Overnight Broccoli Cheddar Breakfast Casserole
Easy and simple to make, this broccoli cheddar breakfast casserole is one the whole family will love! Assemble the night before and bake off in the morning, making it perfect for parties and brunch. Vegetarian.
Note: This recipe is NOT dairy free. It was published before Cook Nourish Bliss transitioned to dairy free recipes and remains popular with long time readers. You can try using substitutions to make it dairy free, however I have not tested this myself and can’t say how it will turn out. Or, you can try something like this dairy free frittata instead!
Spring fever has officially set in. The sun is shining, the birds are chirping. As for me? I’m in full on brunch mode. Like, I want to invite all the people over all the time for brunch.
Now, as far as the food goes, I am definitely a savory brunch kind of girl. Don’t get me wrong, I want muffins, fruit and the like as part of the spread too.
But the main component? Needs to be savory. And preferably include some kind of carbs. ♡
Which leads us to this broccoli cheddar breakfast casserole. You all seem to absolutely love overnight bakes – this berries and brie breakfast bake is still a reigning favorite on the site.
So I decided it was high time to create a completely savory version. With broccoli and cheddar.
And just like the other recipe, this entire casserole is prepped the night before. 100% assembled. You let it sit overnight in the fridge and then bake it off when ready to enjoy in the morning.
So you can hang out with friends or family and sip on some coffee (or a mimosa!) while it bakes away. Most excellent indeed.
Tips & Tricks For This Broccoli Cheese Breakfast Casserole
- After the casserole is done baking, be sure to let it stand untouched for about 10 to 15 minutes before serving. This gives it a chance to set up.
- I love to add the red bell pepper for a pop of color (and because I love them and they pair so well with the other flavors here), but you could certainly just use extra broccoli instead.
- Don’t have any white cheddar on hand? Orange cheddar works too.
- You can also use any other sort of heartier loaf. I love the whole wheat, but I’ve also made this with an oat-y multigrain bread and it’s fantastic both ways.
And now, we brunch!
Additional Breakfast Casserole Recipes You Might Enjoy:
- Berries and Brie Breakfast Bake
- Crockpot Southwest Breakfast Casserole
- Overnight Raspberry Almond Baked French Toast
- Slow Cooker Spinach Feta Egg Casserole
- Overnight Baked Apple Cinnamon French Toast
Did you make this recipe? Rate and review it down below! I’d love to hear from you.
Overnight Broccoli Cheddar Breakfast Casserole
Easy and simple to make, this broccoli cheddar breakfast casserole is one the whole family will love! Assemble the night before and bake off in the morning, making it perfect for parties and brunch. Vegetarian.
Ingredients
For the veggies:
- 1 ½ tablespoons olive oil
- 1 medium red bell pepper, sliced
- 3 cups bite-sized broccoli florets
- ¼ teaspoon fine sea salt
- pinch of pepper
For the casserole:
- 4 large eggs
- 1 â…“ cups unsweetened plain almond milk (or regular milk)
- ¼ teaspoon fine sea salt
- pinch of pepper
- 5 cups cubed (¾-inch pieces) whole wheat bread*
- ½ cup thinly sliced green onions
- 5 to 6 ounces mild white cheddar cheese, cut into ½ inch cubes
Instructions
For the veggies:
- Set a medium skillet over medium heat. Add in the olive oil. When hot, add in the pepper, broccoli, salt and pepper. Cook for about 4 to 5 minutes, until crisp tender. Remove from the heat and let cool for 5 to 10 minutes.
For the casserole:
- Spray a 2 to 3-quart baking dish with olive oil or nonstick cooking spray and set aside.
- In a medium bowl, whisk together the eggs, milk, salt and pepper until well combined. Set aside.
- Add half of the bread cubes to the bottom of the prepared baking dish. Top evenly with half of the cooled broccoli mixture, half of the green onions and half of the cheddar cheese. Top with the remaining half of the bread cubes, the broccoli mixture, the green onions and the cheese. Evenly pour the egg mixture over the top.
- Cover the dish tightly with plastic wrap and transfer to the refrigerator. Let sit for at least 8 hours or overnight.
When ready to bake:
- Preheat the oven to 375ºF.
- Remove the plastic wrap from the baking dish and then cover with foil. Bake for 20 minutes, then remove the foil and bake for another 20 to 25 minutes. The casserole should be golden brown on top and should not really “wiggle” if you shake the pan gently.
- Let stand for 10 to 15 minutes before serving.
Notes
*Try to use at least one day old bread for this recipe.
Prep time does not include time to let the base sit overnight in the fridge.
Nutrition Information:
Yield: 6 Serving Size: 1Amount Per Serving: Calories: 305Total Fat: 17gSaturated Fat: 6gTrans Fat: 0gUnsaturated Fat: 9gCholesterol: 147mgSodium: 565mgCarbohydrates: 25gFiber: 5gSugar: 5gProtein: 16g
Nutrition data shown is an estimate provided by an online calculator and is for informational purposes only. It should not be considered a substitute for a medical professional’s advice.
This looks absolutely incredible!! I’ve been doing a lot of sweet brunch items lately, so I’m definitely now in the mood for savory. I love that this dish also incorporates a hefty dose of veggies. YUM!
I think this would be a great side-dish for dinner. Â I love that it has broccoli, peppers, and cheese!Â
Overnight bakes and recipes in general are such a great invention. It’s so easy! Loving the savoury take on your usual sweet bakes. I’m bookmarking this one for a weekend!
Can I please come over for brunch?! I want to sit on the porch with mimosas and tell funny stories! I love all the brunch foods, but I think I might lean more towards savory too. This dish has all of my favorite things in it and makes me want to throw a brunch party soon!
You are welcome anytime Izzy!!
I’m just hanging out in Florida where it’s kind of cold! Â Wish I was eating this right now. I love red peppers too for the color they provide.Â
Brunch is definitely the best meal, especially if the sun is shining and you can sit out and enjoy it. Loving the carbs in this dish you just can’t beat them 😀
My kind of healthy and comforting meal! I love it!
Whoa. This dish is totally calling my name. I’m in the same boat as you for brunch, it’s savoury all the way! Savoury dishes are the ones I crave and if they aren’t loaded with melty cheese, they can forget about it! Okay, so now I’m thinking of food as a person….I blame cheese.Â
hahaha oh this made me laugh – pretty sure I do the same thing!
You’re doing brunch SO right. This + mimosas? Perfection. 🙂
I’m trying hard to get into spring mode, but I just got done checking the weather and we’re in a winter storm watch until Thursday! I’ll just have to make this breakfast casserole and pretend that I’m enjoying a spring brunch while watching the snow fall! 😉
Ahhh snow! It got really cold here for a few days but definitely no snow!
I also love plenty of savory food, but at the end of every meal I need something sweet too! 😉 This looks and sounds like a droolicious casserole. Love how it is packed with so many awesome flavors!
Ooooh yum!! I’ve been alllll about savory breakfasts lately, and make ahead anything is a favorite. This mix looks delicious!
I love this!! It’s much more creative than bringing a quiche or a fruit salad to brunch. Pinned!
And I’m a savory brunch girl all the way. Although I have a raging sweet tooth!
I am a savory bruncher too! I went to brunch on Saturday and tried to order oatmeal with bananas and maple syrup (because I was feeling the sweet tooth, a rare occurrence) and they were somehow out so I ended up with a frittata- the brunch gods know I need my savory goodness 🙂 This casserole looks amazing!
haha the universe was telling you something!! Thanks Medha!
I’m with you on needing PLENTY of savory food during brunch, with a side of sweet! Â And naturally making it ahead it perfect for me because I’m a lazy breakfast maker. Â This looks so delicious with all of the veggies and would be so perfect with a mimosa — brunch is the best!
haha same here! Thanks Marcie!
Spring fever is setting in big time indeed – which makes it hard to for to to stay put at my 9-5 job – I’d rather be home taking my time brunching on casseroles like this before spending the day working in the yard! Yes – I am so lame! 🙂
Not at all! Brunching is always a good thing!
I love the savory twist on this overnight casserole! I am looking for a casserole to add to my Easter menu and this one looks great. I have everything I need to make it already too!
Oh yes, I have to have something savory for brunch! And something sweet. I want it ALL! 😉
I’m always down for the broccoli cheddar combo and I love the idea to combine that in a breakfast casserole. It looks deeeelish!Â
I am almost always in brunch mode so love this! Â : ) Â Would you believe we had snow last night and I was half expecting a snow day today; luckily, we only got a dusting and all is well. Â Feel like I have a bonus day to get so much done! Â : ) Â Looking at this, I think I need to step back from the dutch baby pancakes and waffles and go savory for brunch. Â Just need to convince the fellas because I also like savory in the morning. Â ; )
Oh my goodness! It was super hot here last week and then this week it’s back to cold. The weather is crazy!
Well feel free to invite me over for brunch any time, Ashley, because your house sounds like the perfect spot!  😉  I’m totally in love with brunch too, and mine NEEDS to be savory… with a touch of sweet pastries and stuff on the side.  I’m a fatty, what can I say, I want both.  Ha.  Loving this breakfast casserole, girlfriend!  But what’s not to love?  Overnight easy?  check.  Carbs?  check.  Cheese?  check.  Delicious?  triple check!!  This sounds fabulous and like the perfect addition to any brunch!  Cheers, girlfriend!
Hey I’m right there with you! And you are always invited to brunch!
I wish that brunch was more of a thing over here, maybe I should make it a thing!
I love overnight breakfasts like this, as they make feeding a crowd so much easier.
Do it!! haha It should so be a thing! 🙂
Oh, I’m TOTALLY ready to brunch alongside you with this gorgeous breakfast casserole! Holy moly, is this ever THE way to handle Monday!!Â
Brunch always seems to taste just a little bit better when it’s spring! This sounds like such a delicious dish, Ashley! My dad makes a similar version for Thanksgiving, but I’m loving your addition of white cheddar and onions. Sounds fantastic!
It really does! Thanks Gayle!