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Stepping up our holiday breakfasts with this Ham and Cheese Croissant Bake. Buttery croissants, Brie cheese, prosciutto, and mushrooms, all tossed together in a mustard “cream” sauce, then baked to golden, cheesy perfection. This a cross between your favorite ham and cheese croissant sandwich and your mom’s old school Christmas morning strata. It feels extra fancy but is actually SO EASY, and of course, SO DELICIOUS. Bonus, it’s just as good for breakfast as it is dinner. And the best part? You can prep this croissant bake in advance, then bake it off just before you’re ready to serve. Perfect for holiday entertaining!
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Ingredients
- Roughly torn, day-old croissants
- Salted butter
- Extra virgin olive oil
- Mixed mushrooms
- Kosher salt and pepper
- Garlic
- Fresh chopped thyme
- Heavy cream
- Whole milk
- Eggs
- Dijon mustard
- Cayenne pepper
- Prosciutto
- Brie cheese
- Swiss or fontina cheese
- Everything bagel spice
There are only two days left until Thanksgiving and oddly I am more prepared than ever. Why? Because I’m not cooking! Well, I mean, I will be cooking, but this year I won’t have our usual huge crowd. My family will be a bit split up (which is the weirdest thing). This is the first year in…ever…that I won’t be with them. It’s also the first time in many years that I will not be roasting a turkey on Thanksgiving Day. It’s OK though, I’ve already roasted two whole turkeys this month alone. Plus, there’s a very good chance I will do so again on Christmas. So, don’t you guys worry, I am not bummed.
All that said, while my family will be in Tahoe over Thanksgiving, almost everyone is currently here in Colorado now. My brothers have taken over my parent’s house. They’ve been making their way over to the HBH studio barn…just down the hill a little way…and requesting food and drink at least once a day. It’s the busiest time of year for us right now, but I just can’t say no to them.
Since everyone is here, I’ve been looking to make more casseroles and bakes that feed our large crew and are easy to throw together. I’ve already made this one pot spicy pesto bake rigatoni twice in the last week. To switch things up a bit, I wanted to give the classic ham and cheese sandwich a fresh new update.
Which brings me to this cheesy bake that’s great for everything from breakfast to dinner. It’s rich, indulgent, and perfect for feeding friends and family.
With nine plus people in my family, I rely heavily on my Pyrex Deep baking dishes throughout the holidays. I love the added depth these dishes provide. I can conveniently layer food in them and easily feed the family…and friends. The new Pyrex Deep are the deepest glass baking dishes out there. They hold up to 50% more than any current glass bakeware. Obviously, they’re perfect for things like pasta bakes and lasagna. But I also love using them for pretty layered dips and desserts.
You can find Pyrex Deep baking dishes at Walmart and Pyrexhome.com.
Here is how to make this ham and cheese croissant bake.
The process is pretty simple. Toast some store-bought croissants in the oven to add a little crispness to them.
While that’s happening, make the mustard cream sauce, which is a simple mix of mustard, cream, eggs, and herbs. When the croissants are toasted, toss them in the sauce along with caramelized mushrooms, prosciutto (or deli ham), and cheese. Layer the croissant and cream in the Pyrex Deep, then bake.
Simple right? Yes, and SO GOOD.
But hold on, there’s more…
The two ingredients you need most…
Creamy Brie cheese and just a touch of everything bagel spice.
First, the brie. It’s not traditional in a ham and cheese sandwich, but I also have Brie in my fridge this time of year and love using it in my recipes to make them feel just a bit more special. Of course, you can really use any cheese you love. But we’ve found the Brie to really take this simple bake from good to incredibly delicious.
Second, everything bagel spice. No, you don’t NEED this, BUT it adds so much. You can mix up your spice blend or pick up some from Trader Joe’s, Whole Foods, or order via Amazon.
This is a great dish to prepare ahead of time for holiday guests. We love enjoying this for breakfast, but it’s also great as a dinner too. Either way, it will be loved by everyone.
I mean, it’s pretty hard not to enjoy buttery croissants, cheese, and ham all baked together. It has the perfect marriage of French flavors. If you don’t already have your Black Friday brunch recipe lined up, add this to the menu. Chances are you’ll have all the ingredients in the kitchen anyway. This dish is also a great way to use up anything leftover from Thanksgiving Day…just throw it in!
If you make this ham and cheese croissant bake, be sure to leave a comment and/or give this recipe a rating! Above all, I love to hear from you guys and always do my best to respond to each and every comment. And of course, if you do make this recipe, don’t forget to tag me on Instagram! Looking through the photos of recipes you all have made is my favorite!
Ham and Cheese Croissant Bake
Ingredients
- 12 cups (about 12-16 croissants) roughly torn, day-old croissants
- 2 tablespoons salted butter, thinly sliced
- 2 tablespoons extra virgin olive oil
- 2 cups mixed mushrooms, roughly chopped
- kosher salt and pepper
- 2 cloves garlic, minced or grated
- 2 tablespoons fresh chopped thyme, (or 2 teaspoons dried thyme)
- 1 cup heavy cream
- 1 cup whole milk
- 3 large eggs, beaten
- 2 rounded tablespoons dijon mustard
- 1/2 teaspoon cayenne pepper, using more or less to our taste
- 3 ounces deli ham or prosciutto, torn
- 4 ounces creamy Brie cheese, cubed
- 1/2 cup shredded Swiss or fontina cheese
- 2 tablespoons everything bagel spice, (optional)
Instructions
- 1. Preheat the oven to 350 degrees F. Grease a 9 x 13-inch Pyrex Deep baking dish.2. Arrange the torn croissants in the baking dish and lay 2 tablespoons of thinly sliced butter over the croissants. Transfer to the oven and bake 5-8 minutes, until the croissants are lightly toasted.3. Meanwhile, heat the olive oil In a large skillet over medium heat. When the oil shimmers, add the mushrooms, season with salt and pepper. Cook undisturbed for 5 minutes or until golden, stir and continue cooking until the mushrooms have caramelized, 3-5 minutes. Add the garlic and thyme, cook an additional minute. Remove from the heat and set aside.4. In a large bowl, whisk together the cream, milk, eggs, mustard, cayenne, and a pinch each of salt and pepper. Add the toasted croissants, mushrooms, ham, and Brie cheese, gently toss to combine. Pour the mixture back into the casserole dish. Top evenly with Swiss cheese and sprinkle with everything spice.5. Cover the dish with foil and bake for 30 minutes. Remove the foil, then continue baking for another 10-15 minutes or until the croissants are golden on top. Serve warm.
Notes
Nutrition
Nutritional information is only an estimate. The accuracy of the nutritional information for any recipe on this site is not guaranteed.
Did you make this recipe? Please rate & comment below.
Christmas breakfast! This is so amazing!
The family loves it!
Hi Dee,
Thank you so much for making this recipe, I am so glad to hear it was enjoyed! Merry Christmas!?? xT
This was delicious and pretty easy to make! I added caramelized onions as well and everyone loved it! Definitely will be a holiday staple!
Hey Ellisa,
Thank you so much for making this recipe, I am so glad to hear it was enjoyed! Merry Christmas!?? xT
Can you use Corning ware or does it have to be a Pyrex dish?
Hi Andrea,
Any baking dish that you have will work just fine. I hope you love this recipe, please let me know if you give it a try! xTieghan
Hi! I have made this before and it’s amazing!! So flavorful and creamy! We also added onion which was great. I am making it for Christmas and I’m wondering if you have any other cheese suggestions for a sub for Brie. I have some picky family members! Any help is appreciated!!
Hey Brooke,
Wonderful! I love to hear that this recipe was enjoyed, thanks for giving it a try! Gruyere would be a great option. Happy Holidays!?? xTieghan
I just made this for my holiday breakfast with my brother and mother. It was delicious! I tore my croissants into smaller chunks than it shows in the pictures above, but otherwise I followed the recipe exactly. I used prosciutto and a mix of mushrooms (white, baby bella, and shitake). I will definitely be making this again!
Hi Nicki,
Awesome! I am thrilled to hear that this recipe was enjoyed, thanks a lot for making it. Happy Holidays!❄️ xT
Made this for post Thanksgiving brunch. Substituted sausage instead of ham and used gruyere cheese instead Brie. It was a huge hit!
Hi Jennifer,
Happy Sunday! Thanks for giving the recipe a try, I love to hear that it was enjoyed! xTieghan
This looks delicious! Any ideas how it would be without the eggs? Any ideas on an egg substitute? Egg allergy in our house!
Hi Hannah,
So sorry I have not tried this without the eggs as they are a main part of the dish. Please let me know if you give the recipe a try! xTieghan
I made this for a brunch today and it received rave reviews, everyone loved it. I used sausage instead of ham. It cooked up perfectly.
Hey! Thanks so much for trying out this recipe! I’m so happy you loved it 🙂 xxTieghan
LOVED this! Same flavor profile as the HBH “Easy Cheese and Prosciutto Croissants,” but much easier to assemble. I left out the mushrooms as my husband (unfortunately) doesn’t like them, but this bake was still bursting with flavor. We hardly had any leftovers, but what WAS left was very good the next day too. Perfect served with a light fruit salad on the side!
Hey Blayre,
Wonderful! That’s so great to hear this recipe was enjoyed, thanks so much for making it! Have a great Friday:) xTieghan
This was the BOMB!!! Made it for Easter brunch, and it was gone in one sitting. Thanks for sharing your amazing gifts so the rest of us can enjoy them!
Hey Annie,
Thanks so much for making this recipe, I am so glad that it was enjoyed! xTieghan
Hi! I might make this for Easter! Our family is not a fan of mushrooms. Any suggestion for a substitute? Maybe asparagus?
Hey Meg,
Really any veggie you like will work here, asparagus would be great! I hope you love the recipe, let me know how it turns out! xTieghan
This recipe is easy & oh soooo delicious!! Everyone, including the guys in our family, loves this casserole. Great job!
Hey Mary Ann,
Thank you so much for giving this recipe a try, I am thrilled that it was enjoyed! Have the best weekend☀️ xTieghan
Delicious!!! However, this took forever to set up! It baked for 90 minutes in the oven before I switched it to the convection oven for another 20! But the results are wonderful!! Well worth the wait.
Hey Randi,
I am thrilled this recipe was enjoyed, thanks a lot for making it! Happy Sunday! xTieghan
Made this and it was awesome! Couldn’t find croissants (major TX snowstorm) so used Trader Joe’s Everything but the Bagel ciabatta rolls and it was super tasty! Thank you!
Hey Mackenzie,
I am so glad you have enjoyed the recipe, thanks so much for making it! Have a great week! xTieghan
Is there a way to make this vegetarian? Could I substitute tomatoes for the ham?
Hey Talia,
Sure, you could really use a combo of veggies here. I hope you love there recipe, please let me know if you have any other questions! xTieghan