Sweet Potato Breakfast Casserole with Sausage

Last updated December 13, 2023 By Kelly Nardo | 20 Comments
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This sweet potato breakfast casserole packs your breakfast favorites into a hearty and healthy breakfast casserole recipe! It has sausage, sweet potatoes, onion, and peppers and is seasoned with classic southwestern flavors. Make it for a comforting brunch or meal prep to have on hand for the week. Gluten-free, dairy-free, paleo, and Whole30.
Prep: 10 minutes
Cook: 55 minutes
Total Time: 1 hour 5 minutes
Servings 6 servings
4.73 from 11 votes

One thing that always sets me up for a good day is a delicious and hearty breakfast. Nothing like starting off the day full and satisfied. And this sweet potato breakfast casserole does just that!

It’s pretty much the best of breakfast all in one. It has ground sausage, sweet potatoes, veggies, and southwestern spices for a little kick. I opted to use chicken sausage to add a little more protein and cut down on the fat, but any kind will work.

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Breakfast casserole with sweet potatoes, sausage, and veggies in a large casserole dish.

From start to finish, this sweet potato egg casserole comes together in about an hour. It makes the perfect flavor-packed brunch or make it at the beginning of the week for an easy grab-n-go breakfast. It’s also great for holiday gatherings – feel free to double the recipe if serving a crowd!

Why we love this sweet potato breakfast casserole recipe

  • made with just 10 simple ingredients
  • macro-balanced – it’s packed with protein, healthy fats, and complex carbohydrates for a well-balanced and healthy breakfast casserole.
  • great for meal prep – make it on Sunday and enjoy it throughout the week.
A piece of sausage potato breakfast casserole being held with a spatula over the plan of the rest of the casserole.

Sweet potato breakfast casserole ingredients

  • olive oil
  • ground sausage – I used chicken sausage to bump up the protein a little more, but any kind will work!
  • sweet potatoes
  • onion
  • peppers
  • eggs
  • garlic powder
  • chili powder
  • paprika
  • cumin
  • salt and pepper
White marble countertop with a small bowl of salt and pepper, a small. bowl of oil, a small bowl of spices, a bowl of diced bell peppers, a plate of 3 sausage links, a carton of eggs, a bowl of diced onions, and a bowl of diced sweet potatoes.

How to make sweet potato breakfast casserole

  1. Preheat the oven to 375 degrees Fahrenheit. Grease a large baking dish with 1 teaspoon oil and set aside (I used an 11×7″ dish).
  2. Cook your sausage. Heat a large nonstick skillet or seasoned cast iron over medium heat, add 1 teaspoon oil, and let it get hot. Add sausage and break up with a spoon. Cook for 4-6 minutes, stirring occasionally until cooked through. Once done, remove with a slotted spoon and add to the greased baking dish.
  3. Cook your veggies. In the same pan with the leftover grease, add the sweet potatoes, onion, salt, and pepper and cook for 8-10 minutes, stirring occasionally. If needed, add a lid to help steam. Add the peppers and cook for another 4-5 minutes until al dente. Turn off heat, add spices, and mix well. Add the mixture to the baking dish with the sausage and stir to combine.
  4. Whisk eggs. In a large bowl, add eggs with some salt and pepper and whisk to combine.
  5. Pour the egg mixture into your baking dish. Mix well to make sure everything is incorporated and eggs are evenly distributed.
  6. Bake. Place the casserole in the oven and bake for 30-35 minutes or until the eggs are cooked through and no longer jiggle.
  7. Enjoy! Top with your favorite toppings, serve with your favorite sides, and enjoy!
Large glass bowl with whisked eggs and a fork in it.

Can you use egg whites for this breakfast casserole?

You can use egg whites instead of whole eggs when making breakfast casserole if you like. This will add more protein and cut down on the fat content of the recipe. About 2 egg whites, or 3 tablespoons liquid egg whites, equals one whole egg. You would need 20 egg whites or 2 cups liquid egg whites. You can also use half whole eggs and half egg whites.

What to serve with a breakfast casserole

You can enjoy this casserole as is or serve it with sides. Here are some of my favorite breakfast sides:

  • toast
  • fresh fruit
  • side salad
  • avocado

Meal prep sweet potato breakfast casserole

The thing I love most about this breakfast casserole is it is relatively easy to throw together. Depending on how much prep you want to do, you can either meal prep it all or just a few components.

  • partial prep – cook your sausage, sweet potatoes, and veggies and allow them to cool. Store in the fridge until you are ready to bake. When you are ready, add them to a greased baking dish, add your eggs, and bake according to the instructions.
  • full prep – follow the directions as written.

Storage

Store in an airtight container in the refrigerator for up to 4-5 days.

Can you freeze breakfast casserole?

Breakfast casseroles are great recipes to freeze. After baking it, let it cool completely. You can freeze the whole recipe in the casserole dish by wrapping it in syran wrap and tin foil or you can freeze it in individual servings. It should last 2-3 months in the freezer. When ready to eat, let defrost in the fridge. Reheat individual servings or if reheating the whole pan, cover it with tin foil and bake it to warm through.

How to reheat breakfast casserole

Reheat casserole pieces in the microwave warmed through, about 1-2 minutes. If reheating the whole dish, bake in the oven to let through.

Overhead shot of sweet potato sausage breakfast casserole in a large casserole dish. The dish is sitting on top of a striped kitchen towel.

Substitutions and additions

Here are a few substitutions for this breakfast casserole. Change it up and make it your own!

  • ground sausage – any kind of ground sausage will work (chicken, turkey, or pork sausage). You can also use ground pork, chicken, beef, or turkey. The flavor profile will change some.
  • sweet potatoes – any kind of potatoes will work (white or red). You could even substitute butternut squash if you have that on hand.
  • spices – one of the easiest ways to change the flavor of the meal! This would be good with Italian spices like basil, parsley, and dill or even taco seasoning.
  • eggs – I like using whole eggs for more flavor, but egg whites will also work.

Here are some additions:

  • cheese – shredded cheddar cheese or mozzarella cheese would both be delicious. Add it when you add the eggs and make sure you mix it into the casserole.
  • veggies – the more the merrier! Zucchini, summer squash, mushrooms, kale, or spinach will all be great.

More healthy breakfast recipes

And if you love quick and easy meals and want to learn how to build a balanced plate, check out our FREE How to Build a Balanced Plate Guide!

Sweet potato breakfast casserole with sausage and peppers in a large glass casserole dish. The dish is in a striped kitchen towel and next to is is a bowl of chopped green onions and half an avocado.
Sweet potato breakfast casserole with sausage and peppers in a large glass casserole dish. The dish is in a striped kitchen towel and next to is is a bowl of chopped green onions and half an avocado.
4.73 from 11 votes

Sweet Potato Breakfast Casserole

Author: Kelly Nardo
This sweet potato breakfast casserole packs your breakfast favorites into a hearty and healthy breakfast casserole recipe! It has sausage, sweet potatoes, onion, and peppers and is seasoned with classic southwestern flavors. Make it for a comforting brunch or meal prep to have on hand for the week. Gluten-free, dairy-free, paleo, and Whole30.
Print Recipe Pin Recipe
Course: Breakfast
Calories: 357kcal
Protein: 23.4g
Carbs: 22g
Fat: 19.3g
Prep Time: 10 minutes
Cook Time: 55 minutes
Total Time: 1 hour 5 minutes
Servings: 6 servings

ingredients

  • 2 teaspoons olive oil (divided)
  • 1 pound lean ground sausage (I used chicken, but any kind will work)
  • 3 cups diced sweet potatoes (380 grams/about 1 large sweet potato)
  • 2 cups diced bell peppers (240 grams)
  • 1 cup diced yellow onion (120 grams)
  • 1 1/2 teaspoons garlic powder
  • 1 1/2 teaspoons chili powder
  • 1 teaspoon paprika
  • 1 teaspoon cumin
  • 10 large eggs, whisked
  • salt and pepper, to taste

instructions

  • Preheat the oven to 375 degrees Fahrenheit. Grease a large baking dish with 1 teaspoon oil and set aside (I used an 11×7" dish).
  • Cook your sausage. Heat a large nonstick skillet or seasoned cast iron over medium heat, add 1 teaspoon oil, and let it get hot. Add sausage and break up with a spoon. Cook for 4-6 minutes, stirring occasionally until cooked through. Once done, remove with a slotted spoon and add to the greased baking dish.
  • Cook your veggies. In the same pan with the leftover grease, add the sweet potatoes, onion, salt, and pepper and cook for 8-10 minutes, stirring occasionally. If needed, add a lid to help steam. Add the peppers and cook for another 4-5 minutes until al dente. Turn off heat, add spices, and mix well. Add the mixture to the baking dish with the sausage and stir to combine.
  • Whisk eggs. In a large bowl, add eggs with some salt and pepper and whisk to combine.
  • Pour the egg mixture into your baking dish. Mix well to make sure everything is incorporated and eggs are evenly distributed.
  • Bake. Place the casserole in the oven and bake for 30-35 minutes or until the eggs are cooked through and no longer jiggle.
  • Enjoy! Top with your favorite toppings, serve with your favorite sides, and enjoy!

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nutrition

Nutrition Facts
Sweet Potato Breakfast Casserole
Amount Per Serving (1 piece (1/6 of recipe))
Calories 357 Calories from Fat 174
% Daily Value*
Fat 19.3g30%
Saturated Fat 5.5g34%
Polyunsaturated Fat 4g
Monounsaturated Fat 8g
Cholesterol 347mg116%
Sodium 850mg37%
Potassium 571mg16%
Carbohydrates 22g7%
Fiber 3.5g15%
Sugar 7.7g9%
Protein 23.4g47%
Vitamin A 10905IU218%
Vitamin C 54mg65%
Calcium 91mg9%
Iron 3.5mg19%
* Percent Daily Values are based on a 2000 calorie diet.
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4.73 from 11 votes (6 ratings without comment)

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20 Comments

  1. It’s odd that 2 of the ingredients list 1/2 tablespoon instead of 1 1/2 tsp. I wasn’t sure if there was an error in the recipes and if it was really supposed to just be 1/2 tsp?

    1. Hey Tracey! I have a 1/2 tablespoon as a measuring spoon, so I usually use that, but it is the same as 1 1/2 teaspoons. No mistake on the recipe – hope that helps!

  2. 4 stars
    Really tasty and filling. I have an issue with the stated 5 minute prep time listed on the recipe. It takes longer than 5 minutes to peel and cube the sweet potatoes, let alone cook them, cook the sausage and beat the eggs. Great flavor, though.

    1. Glad you enjoyed the recipe, Marianne! The prep time is just dicing/slicing (I don’t peel my potatoes so that could take longer). The total cook time is 50 minutes which includes cooking all the ingredients on the stove and also cooking in the oven. I will work on adding cook time on my recipe card to make it more clear. Thank you!

  3. 5 stars
    This was easily the best breakfast casserole I’ve ever had. I had lots of requests for the recipe and will not be waiting until next Christmas to make it again.

    Thank you!

  4. 5 stars
    So yummy! Making it again for the second week in a row! I made it with soyrizo form Trader Joe’s and I can’t get enough!

  5. Were there suppose to be bell peppers in the recipe? It looks like red peppers in the photos, but I didn’t see them in the ingredients.

  6. This was AMAZING! A fave Whole 30 breakfast of ours for sure. Would easily make this again when not on Whole 30 too, so delicious. Amazing flavors, reminded me of a breakfast hash I get at my favorite restaurant.