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Healthy Turkey Sausage Breakfast Casserole with Sweet Potatoes

Healthy Turkey Sausage Breakfast Casserole is an easy make ahead breakfast that you just pop in the oven in the morning! Enjoy this turkey sausage sweet potato egg casserole after a morning workout, for meal prep or with your favorite people!

closeup of turkey sausage breakfast casserole cooked in clear baking pan

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A loaded turkey sausage casserole recipe is just what I crave after a long run. It’s satisfying, full of necessary protein + carbohydrates, as well as electrolytes for runners, like salt.

Salt gets a bad rap, but sodium is so important for endurance athletes.

I also love this veggie loaded breakfast casserole for all the colors and extra antioxidants, that can help with decreasing inflammation. 

This turkey sausage breakfast meets the bill and I bet after tasting it, you’ll be a believer too. If you happen to be looking for what to eat after running in the morning, you’ll be pleasantly surprised here. 

If you’re a bacon lover, you can totally use bacon in place of the turkey sausage. Or, just navigate over to these corn and bacon fritters or bacon wrapped sweet potatoes.

If you’re new here, I love sweet potatoes and there is no shortage of roasted sweet potato recipes on the blog.

But, a sausage and sweet potato breakfast is something new! It does remind me of my savory breakfast skillet, but this time we’re using ground turkey. 

I love the combination of turkey sausage, eggs and sweet potatoes. The flavors are just absolutely perfect to me, which is why this sweet potato egg casserole with turkey sausage is my go-to. 

serving spoon with piece of veggie and sausage breakfast casserole on it

Ingredients For Turkey Sausage Breakfast Casserole

There are times when I happen to be looking for breakfast recipes with turkey sausage and nothing sounds good. Not anymore!

While I list some modifications below for this turkey sausage breakfast casserole, here is how I make it perfectly each time. 

You’ll need:

  • sweet potatoes
  • mushrooms
  • onion
  • pepper (I used red bell pepper)
  • turkey sausage (I bought precooked, but uncooked also works)
  • eggs
  • cheese, shredded
  • evaporated milk
  • garlic powder
  • Italian seasoning
  • s+p
white cutting board with diced sweet potatoes, onions, peppers, mushrooms and other ingredients necessary for breakfast casserole

How to Make a Breakfast Casserole with Turkey Sausage

While the recipe does require some time to “sit” overnight, this easy breakfast casserole with turkey sausage is not very labor intensive once it’s all mixed.

This overnight turkey sausage breakfast casserole will make your mornings easier and more delicious.

overhead photo of two plates wityh piece of turkey breakfast casserole

And then the oven does most of the work while you can get your chores done, like laundry, cleaning, or even sneak a quick workout in. I’ll use my bike for peloton workouts so I don’t have to leave the house. 

You can easily do the preparation the morning of, and it will take about 10 minutes for prep. To prep, cook your turkey sausage if it’s not pre-cooked (either will work for this casserole recipe). You’ll also want to cook your veggies.

pan with diced sweet potatoes, onions, mushrooms and peppers

Whisk your ingredients in a bowl, adding in the veggies and turkey sausage last. Then, let them cool and pour in a casserole dish for baking.

Bake for 45-55 minutes or until cooked through.

This works especially well on holidays. So, save this holiday breakfast casserole recipe for when the time comes and you’re feeding a large group. 

clear baking casserole pan with casserole filling before baking

Tips and FAQ

Can you freeze breakfast casserole before cooking?

Yes you can freeze a breakfast casserole before baking! To freeze, cover the unbaked casserole tightly. It will stay for 2-3 months in the freezer. When ready to bake, allow to thaw overnight in the freezer and then follow baking instructions. I’ll just prep two at once and freeze one for the following weeks

How long does breakfast casserole last?

This sweet potato sausage casserole will be good for 3-4 days in the fridge. Or you can freeze it for up to 3 months!

Swaps to make

If you’re not a mushroom fan, leave them out and try other options, like spinach or peppers. For a plant based option, swap nutritional yeast in for cheese. If you’re not a fan of sweet potatoes, you can use white potatoes for a more traditional healthy hash brown casserole.

You could also use ground turkey if you’d like. Another way for using ground turkey or turkey sausage is in this turkey taco quinoa skillet.

This turkey breakfast sausage recipe is very forgiving, and I have no doubt that you’ll love this turkey sausage casserole as much as we did.

turkey sausage breakfast casserole slice on plate with fork and striped napkin next to it

Other Breakfast Favorites:

Yield: 8 servings

Turkey Sausage Breakfast Casserole with Sweet Potatoes

overhead photo of two plates with piece of breakfast casserole and avocado slices and baking dish with turkey sausage casserole

This Turkey Sausage Breakfast Casserole is an easy make ahead breakfast that you just pop in the oven in the morning! Enjoy this turkey sausage sweet potato egg casserole after a morning workout, for meal prep or with your favorite people!

Prep Time 10 minutes
Cook Time 50 minutes
Total Time 1 hour


  • 4 cups sweet potatoes, diced (about 2 medium sweet potatoes)
  • ½ cup mushrooms
  • 1 small yellow onion, diced
  • ½ red bell pepper, diced
  • 2 Tbsp olive oil or butter
  • 16 oz turkey sausage (precooked or uncooked both work)
  • 6 eggs
  • 1 ½ cups shredded cheese of choice
  • 12 oz can evaporated milk
  • 1 tsp italian seasoning
  • 1 tsp garlic powder
  • 1/2 tsp salt
  • ¼ tsp pepper


  1. Chop your vegetables (sweet potatoes, mushroms, onion and red pepper).
  2. Preheat large skillet over medium high heat and start cooking sweet potatoes with olive oil, butter or coconut oil.
  3. If your turkey sausage is not precooked, cook it. Preheat a large skillet over a medium flame. Heat cooking oil and add turkey sausage (remove caseings if necessary).
  4. In large mixing bowl, whisk together eggs, condensed milk, cheese and spices. In separate mixing bowl, mix cooked vegetables and turkey sausage.
  5. Once turkey sausage and and vegetables have cooled, combine with eggs, milk and cheese mixture.
  6. Grease 9x13 casserole pan and pour combined mixture into pan, making sure to spread all ingredients out evenly.
  7. Bake at 350 for 45-55 minutes or until cooked through. Let cool and enjoy with your favorite toppings.


If planning to freeze turkey sausage breakfast casserole, continue to step 6 and then cover with foil and plastic wrap and place in freezer for up to 2-3 months.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 428Total Fat: 24gSaturated Fat: 10gTrans Fat: 0gUnsaturated Fat: 11gCholesterol: 217mgSodium: 718mgCarbohydrates: 29gFiber: 4gSugar: 12gProtein: 25g

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  1. This breakfast casserole looks great, Sarah.
    We regularly make the Baked Sweet Potato Oatmeal casserole with blueberries from your recipe – the BEST!
    Thank you!

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