Sweet Potato, Sausage and Kale Breakfast Casserole is a healthy low-carb breakfast casserole packed with nutrients and flavor. This simple, clean recipe is perfect for feeding the whole family!

Sweet potato and sausage egg casserole in a baking dish with a piece missing, fresh out of the oven.

And while I love aย Cottage Cheeseย Breakfast Casserole orย Mediterraneanย Breakfast Casserole, this sweet potato, sausage, and kale breakfast casserole is one of the best.

Iโ€™ve always found that the sweet potato in this recipe brings a cozy, earthy sweetness while being a great option for preventing any insulin spikes that you might get with starchier carbs. The sausage adds tons of protein, and the kale keeps things fresh (with a pop of color!). Then thereโ€™s the cheese and eggs that bind it all together in one golden, bubbly masterpiece!

I first started making breakfast casseroles for Motherโ€™s Day brunch with my (very large!) family. My mom and sisters are phenomenal bakers, and they usually make cinnamon rolls and muffins for the table. 

And my brothers are the captains of the appetizers and alcohol teams. This leaves me with my favorite type of dish to prepare; something savory and filling that lets the oven do the hard work!

Whether youโ€™re planning a holiday spread or are looking for a healthier breakfast option thatโ€™s equal parts cozy and comforting, this easy breakfast recipe deserves a spot in your rotation.

Slice of Sweet Potato, Sausage, Kale Breakfast Casserole on a plate

Ingredient Notes:

Sweet Potatoes:ย Adds a touch of natural sweetness and heartiness to this dish. Replace the sweet potato with russets or Yukon Golds if you prefer.

Garlic:ย I absolutelyย loveย garlic, and Iโ€™ll always say that the more cloves you use, the better!

Mushrooms:ย Savory, umami-rich bites of goodness that balance the sweetness of the potato and add plenty of texture.

Turkey Breakfast Sausage: Turkey is lean but flavorful. So, it helps to keep this casserole moist. Pork sausage also works, but I recommend trying to find a slightly lower-fat alternative if you can. Try ham, chorizo, or even crumbled bacon instead of sausage if you like!

Kale:ย This antioxidant-rich powerhouse is loaded with Vitamins C, K, and A! Plus, it wilts beautifully into the casserole. Try spinach, Swiss chard, or collard greens instead of kale to switch things up.

Eggs:ย The backbone of any good breakfast casserole that also acts as a binder.

Sea Salt: To enhance all of those delicious flavors.

Mozzarella Cheese:ย Itโ€™s melty, golden, and comforting. I love using this to build a bubbly layer over those velvety eggs! Fancy something different? Cheddar, goat cheese, feta, Gruyรจre are all great choices here.

Recipe Customizations

  • If you need to, omit the cheese or swap in a dairy-free blend.ย 
  • Add half & half to the whisked eggs before baking if you want to make this sweet potato, sausage, and kale breakfast casserole extra-creamy.
  • Make this recipe Whole30 or paleo-friendly by leaving out the cheese and using a sausage that fits in with your meal plan!
  • Salsa, avocado slices, hot sauce, or fresh herbs all make for fun finishing touches here. You can really make this dish your own!

Recipe Tips

  • You can sautรฉ the veggies and brown the sausage a day in advance. Just store them in the fridge, then assemble with the eggs and cheese when youโ€™re ready to bake.
  • I recommend letting the sausage and veggie mixture cool for at least 10 minutes before pouring in the eggs. This tends to keep the eggs from scrambling too early and becoming a mushy mess.
  • Donโ€™t overcook the kale as itโ€™ll become bitter!
  • If youโ€™re using pork sausage, it can release a fair bit of fat as it cooks. If this happens, drain the excess so your casserole doesnโ€™t get greasy.
  • Eggs love to stick. I usually apply a thin coat of oil to my casserole dish for easy serving and clean-up!
  • If you can, let the casserole cool for at least 10 minutes before slicing. I find it holds its shape better this way.ย 

How to Make Sweet Potato Sausage and Kale Breakfast Casserole

Heat olive oil in a large skillet over medium-high heat. Add the chopped sweet potato and cover. 

Cook your sweet potato for 5 to 7 minutes and stir occasionally until everything is all softened but still al dente.

Chunks of sweet potato cooking in a skillet to make home fries.

Stir in the mushrooms and garlic. Cook them for 3 to 5 minutes until both ingredients have softened up.

Push your veggies to one side of the skillet and brown the sausage. Drain any fat if you need to, then stir the sausage into the veggies.

sweet potato, mushrooms, garlic, and sausage cooking in a skillet

Add the kale, cover, and cook for about 2 minutes (until itโ€™s all wilted). Stir everything together and cook off any excess moisture.

Kale, sweet potato, mushrooms, garlic, and sausage cooking in a skillet

Preheat the oven to 375 degrees Fahrenheit and lightly oil a large casserole dish. 

Transfer the veggie-sausage mixture into the casserole dish and let it cool for 10 minutes.

In a mixing bowl, whisk your eggs with some sea salt.

Eggs in a clear bowl with a whisk to be beaten.

Then, pour the eggs over the cooled mixture in the casserole dish and stir to distribute everything evenly for baking.

Sausage, kale and sweet potato surrounded by beaten eggs in a casserole.

Sprinkle cheese over the top, then bake for 45 to 55 minutes until itโ€™s all set and golden brown.

Grated cheese on top of breakfast casserole ingredients, ready to go into the oven.

Cool for 10 minutes before slicing and serving!

Store leftovers in an airtight container in the refrigerator for up to 5 days.

Casserole dish full of sausage, sweet potato and kale breakfast casserole with a slice taken out.

The next time you’re craving a hearty breakfast, whip up this easy recipe!

This sweet potato, sausage, and kale breakfast casserole is wholesome, incredibly easy to make, and perfect for everything from Sunday brunch to regular weekday meal prep! I mean, talk about an overachiever.

The sweet potato gives your eggs a touch of sweetness, the sausage is uber-hearty, and the kale adds tons of nutrients to the mix. I also love how the cheese ties it all together in all of its melty, golden glory!ย 

If you love this casserole, here are a few more delicious breakfast recipes you might enjoy.

More Breakfast Recipes

Enjoy!

Sweet potato and sausage egg casserole in a baking dish with a piece missing, fresh out of the oven.

Sweet Potato, Sausage and Kale Breakfast Casserole

4.36 from 70 votes
A breakfast casserole recipe with sweet potato, sausage, kale, and cheese
Prep Time 25 minutes
Cook Time 1 hour
Total Time 1 hour 25 minutes
Servings: 10 servings

Ingredients

  • 1 medium sweet potato chopped
  • 2 cloves garlic minced
  • 2 cups mushrooms chopped
  • 16 oz turkey breakfast sausage
  • 1 large head kale chopped into small
  • 18 eggs well beaten
  • ยฝ tsp sea salt
  • 1ยฝ cups mozzarella cheese

Instructions

  • Heat the olive oil in a large skillet over medium-high heat. Add the sweet potato and cover. Cook, stirring occasionally, until the sweet potato has softened but is still slightly firm, about 5-7 minutes.
  • Add the mushrooms and garlic and continue cooking until the mushrooms have softened, about 3-5 minutes.
  • Move the vegetables to one side of the skillet and brown the sausage. If you’re using pork sausage, drain any excess fat. Once cooked, stir the sausage in with the vegetables.
  • Add the chopped kale and cover the skillet. Cook until the kale has wilted, about 2 minutes. Stir all the ingredients until they’re thoroughly mixed. If water or moisture remains at the bottom of the skillet, continue cooking until the water evaporates.
  • Preheat the oven to 375ยฐ F. Lightly oil a large casserole dish. Transfer the vegetables and sausage to the casserole dish and allow the mixture to cool for 10 minutes.
  • Crack the eggs into a large mixing bowl and whisk until well combined.
  • Pour the egg mixture into the casserole dish and use a wooden spoon to spread it so that the eggs and veggies are evenly distributed.
  • Sprinkle the cheese on top and bake in the preheated oven for 45-55 minutes, or until the casserole has set and the cheese is golden brown.
  • Allow the casserole to cool 10 minutes before cutting large slices and serving with your guests’ choice of toppings.

Notes

For a more tender and richly flavored casserole, add 1/3 cup of half & half to the egg mixture.

Nutrition

Serving: 1of 10 ยท Calories: 315kcal ยท Carbohydrates: 16g ยท Protein: 24g ยท Fat: 19g ยท Fiber: 2g ยท Sugar: 3g
Author: Julia
Course: Breakfast
Cuisine: American
Keyword: breakfast, breakfast casserole, brunch, gluten free, healthy, kale, sausage, sausage breakfast casserole
Did You Make This Recipe?I want to see it! Tag @the.roasted.root on social media!

Julia Mueller
Meet the Author

Julia Mueller

Julia Mueller is a recipe developer, cookbook author, and founder of The Roasted Root. She has authored three bestselling cookbooks, – Paleo Power Bowls, Delicious Probiotic Drinks, and The Quintessential Kale Cookbook. Her recipes have been featured in several national publications such as BuzzFeed, Self, Tasty, Country Living, Brit.co, etc.

Read More About Julia

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4.36 from 70 votes (62 ratings without comment)

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Questions and Reviews

    1. I think that would work great! I would bring the casserole closer to room temperature by taking it out about 15 minutes before you want to bake it, so that you aren’t putting it in the oven cold. Enjoy!! xoxo

  1. Not sure how I landed on this recipe many many months ago. Iโ€™ve made it three times but most recently this week. I used half eggs and half packaged egg whites. Still good but next time Iโ€™ll just stick with whole eggs. Itโ€™s really delicious and I also top with salsa. Freezing in squares then put in food saver bags to take camping. Just drop bag in hot water to heat. Not big on camp cooking so I do most ahead.
    Iโ€™m very new to your site so Iโ€™m really digging in now.

    1. Thanks so much for the sweet note, Christina! It’s always good to know what changes to recipes people have tried and liked or didn’t like – this is super helpful to others who want to try the same thing! Thrilled you’ve been enjoying the casserole! ๐Ÿ˜€ xoxoxox

  2. Hello,
    wow! I’m having 8 people over for breakfast next month, just trying to prepare myself. I love this recipe, it looks yummy! I’m having a breakfast brunch, should I add more dish to this? Thank you!

    1. Hi Helena!

      How fun!! I think the casserole will be plenty filling for 8 people, but you may want to whip up a salad or some bread/biscuits to go along with it just to be sure everyone is satisfied. I actually love pairing this casserole with my Lemon Scones! Hope everyone enjoys!

  3. The recipe is listed under Whole 30 but calls for 1 1/2 cups of mozzarella, any substitution suggestions for the cheese? Thanks

  4. This looks and sounds delish! Iโ€™d like to make it in advance for a weekend away Have you tried freezing? Love all the great recipes! Thanks.

    1. Hi Chris,

      I haven’t tried freezing the casserole. I’m not sure how eggs do during the freezing process, but my guess is it may not reheat very well. xo

    1. Hi there! Technically, two should feed 22, but when it comes to entertaining guests I always err on the safe side and make more just in case. So if it were me, I would make three ๐Ÿ˜€

  5. Hi Julia, this recipe looks absolutely delicious! Like you, I love eggs and vegetables.
    I’m a little confused by, “1 pieces large package kale” in the ingredients list. Should the “pieces” be removed?
    I absolutely love your recipes and appreciate your response. Thank you!

    1. Hi Tiffany! Thanks so much for catching that! I changed recipe plugins a few months ago and not all of my recipes transferred over correctly, so your hunch was right! I fixed the recipe. Hope you enjoy!! xoxo