Crockpot Breakfast Casserole with Bacon and Gruyere

Friends and family will oooh and ahhhh over this gourmet Crockpot Breakfast Casserole, whether you serve it for a weekend brunch, a weeknight dinner, or at your next holiday gathering. Its depth of flavor and beautiful color come from the Burgers’ Smokehouse bacon, onions, garlic, kale, roasted red peppers, and Gruyere and Parmesan cheeses.

Crockpot Breakfast Casserole with Bacon and Gruyere

Created in partnership with Burgers’ Smokehouse.

Why You Need to Make This Casserole NOW

I cannot impress this upon you enough: MAKE.THIS.CASSEROLE. Our team and families here at Thriving Home couldn’t get enough of it!

Crockpot Breakfast Casserole with Bacon and Gruyere

Here are just a few reasons why we’re loving this make ahead breakfast casserole…

  • Oh, the flavors and colors in this recipe! Forget the brown, mushy casseroles you’ve been scarred by in the past. This one will win over all your senses with its layers of tender hash browns, crispy Burgers’ Smokehouse bacon, gooey Gruyere cheese, pungent Parmesan, and bright red roasted peppers intermixed with sautéed onions and kale. It’s a sight to behold, smell, and devour!
  • It’s easy to make ahead for your next holiday gathering or when you host guests. Simply store it in the fridge for up to 3 days or in the freezer (using our instructions below) for up to 3 months.
  • Makes a BIG batch, serving 10-12 people. Great for serving to a crowd.
  • This recipe offers the perfect cook time for a brunch, like Easter, or a breakfast-for-dinner option. More on that below.
  • Reheats well. It’s delicious as leftovers! Our family ate on this casserole for days, and I was able to take some to our neighbors, too. Like I mentioned, it feeds an army!
  • Gluten-free. If you’re trying to avoid gluten, this casserole does so by using hash browns instead of bread.
Crockpot Breakfast Casserole with Bacon and Gruyere

What Ingredients Do I Need?

Don’t be intimidated by this ingredient list! You can find everything you need at Hy-Vee or your local grocery store.

Bacon – This is the #1 most important ingredient because….BACON. We recommend using Burgers’ Smokehouse Bacon, either Uncured Country Bacon or Hickory Smoked.

Crockpot Breakfast Casserole with Bacon and Gruyere

Once you try Burgers’, you can never go back. The difference is all in their dry cure method…

Find Burgers’ Smokehouse Bacon at your local Hy-Vee or find a store near you that carries it.

Gruyere Cheese – This is perhaps the second most important ingredient, turning what could be a boring casserole into something gourmet! Gruyere is a hard light yellow Swiss that’s known as a mild-tasting melting cheese. It adds savoriness without overshadowing the other ingredients. I bought one 6 ounce block and shredded it by hand. It just took a minute or so.

Note: You can substitute your favorite shredded cheese, if you don’t have Gruyere. Cheddar cheese or Colby jack would work well.

Shredded Parmesan cheese – Provides another layer of flavor.

Roasted red peppers – Adds color and savoriness. Find a jar in the pickle aisle.

Kale – Adds amazing color and nutrition. You can’t really taste it, though. You can substitute baby spinach instead.

Yellow onion

Fresh or frozen hash browns – Make sure they are thawed first.

Milk – Your choice of what kind but I used 2%.

Large eggs

Salt and pepper, red pepper flakes, and garlic cloves – Good seasoning along the way is essential to this recipe.

Crockpot Breakfast Casserole with Bacon and Gruyere

How to Make Crockpot Breakfast Casserole

Watch this short video tutorial to see how easily this casserole comes together!

How Long Should I Cook a Breakfast Casserole in the Crockpot?

We know you want a slow cooker breakfast casserole that takes all night to cook and is waiting for you in the morning. But, I want to let you in on a not-so-fun secret: you’ll end up with an overcooked, burned breakfast casserole if you do. 🙁

Crockpot Breakfast Casserole with Bacon and Gruyere

Here’s the good news. We learned while testing recipe after recipe for From Freezer to Cooker that the perfect cook time for a crockpot breakfast casserole is exactly 4 hours on LOW. That means you can have it done just in time for a brunch or make it as a breakfast-for-dinner option.

This crockpot breakfast casserole also reheats well in the microwave in small portions, so don’t be afraid to cook it ahead of time and eat it later.

How to Make Ahead and Freeze Breakfast Casserole

Reduce stress and free up yourself to enjoy your next gathering by preparing this big batch recipe ahead of time. That way you can simply drop it in the slow cooker a few hours before you want to serve it.

You can either store the prepped, uncooked casserole in the fridge in the crockpot insert for up to 3 days. Or, you can freeze the prepped, uncooked casserole in a freezer bag or container for up for 3 months. When you’re ready to cook it, thaw completely and empty the contents into the crockpot.

Be sure to follow our freezing instructions in the recipe below.

Crockpot Breakfast Casserole with Bacon and Gruyere

More Recipes for a Crowd

If you’re looking for more delicious recipes that feed a crowd, be sure to check out and save our most popular article, 20+ Meals That Feed Large Groups.

Crockpot Breakfast Casserole with Bacon and Gruyere

Get ready to whip up one of the most memorable make ahead breakfast casseroles you’ve ever had!

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