Roasted Italian Sausages with Potatoes, Peppers, and Onions

Roasted Italian Sausages with Potatoes, Peppers, and Onions is an easy one pan recipe that couldn't be easier to make!

344 CAL 35g CARBS 14g FAT 21g PROTEIN

This super simple roasted sausage and potato dish is one my family constantly requests. It's easy comfort food at it's finest and combines the classic flavors of sausage and peppers with hearty potatoes for a one pan dish that's filling and delicious.

Baked sausage dishes are a staple in my home. Not only are they an easy one-dish meals, but they are also clean out the fridge style meals where I can quickly use whatever I have on hand, especially some of those veggies that are on the verge.

With that said, not everyone in my house is always a fan of all the random veggies I tend to throw in this versatile recipe. While I might love roasted sausages with kale or fennel or celery root - sometimes everyone else just wants something classic like today's recipe using red potatoes, bell peppers, and onions.

To make this recipe your own, you can make all kinds of simple changes to switch up the flavors. Start off by checking out all the varieties of lean chicken or turkey sausages out there - apple and sage, jalapeno, roasted red pepper and feta, pesto - there are so many delicious options.

Then build your spice profile to match the flavors in the sausages. Use paprika and cumin with spicier sausages, try out Cajun seasoning with apple sausages, use fresh rosemary with pesto chicken sausages. Lastly mix up the potatoes using sweet potatoes or even turnips, butternut squash, celery root, or rutabaga for a lower carb option.

Roasted sausage, potatoes, onions, and bell peppers on a plate with shredded Parmesan cheese.

How to roast sausages in the oven?

Whether it is a sheet pan sausage dish or this simple roasted sausage and potato dish, it's really easy to cook sausages in the oven for all kinds of recipes. 

  • Whole sausages: When roasting whole sausages, they will take about 30 minutes at 400 degrees. This is true for standard size turkey, chicken, or pork sausages that come in raw form. Make sure to poke some holes in the sausage using a fork or a knife so that they don't burst. Cook them until the juices run clear and they are cooked through. 
  • Sliced sausages: Not surprisingly, sliced sausages will cook more quickly than whole sausages.  At 400 degrees, sliced raw sausages can cook in 15-20 minutes. 
  • Raw vs. Precooked: It's important to remember that pre-cooked sausages are already cooked. When you roast them in the oven, you are just reheating them to serve and potentially browning them a bit to enhance the flavor. The main thing you want to avoid when using pre-cooked sausage is overcooking it and making it dry. At 400 degrees, you probably only need to cook them for 12-20 minutes, depending on what it is being cooked with. 
  • What about veggies: When roasting sausages with vegetables, you always want to think about how long the vegetables take to cook. Choose vegetables that cook in the same time as the sausages you are using, or make a plan (see below) to stagger the cooking time.
  • Make a plan: If you are making a sheet pan sausage meal, like this roasted sausage and potato dish, you want to create a plan based on how long the sausages and vegetables take to cook. Remember you can always stagger the cooking and start with the item that takes the longest, like the potatoes, and then add other vegetables like zucchini or green beans, that cook more quickly. You can also change up the size of the vegetables (dicing potatoes versus a larger chop) to help the cook more quickly.

What vegetables can I roast with sausage and potatoes?

There are almost endless options when it comes to choosing vegetables to toss in with the roasted sausages and potatoes. I love the classic combination of peppers and onions with sausages, which is why that's what I included here, but here are some more ideas:

  • Add greens with some kale. Add it right from the beginning since kale takes a while to become tender. It will soak up the flavors of the sausage, peppers, and onions. 
  • If you have some cherry tomatoes, you could toss them in with this dish. 
  • Toss in some diced zucchini during the last 10 minutes of cooking to add some extra veggies to your dish. 
  • If you want a lower carb alternative to potatoes, consider swapping in butternut squash, turnips, or celery root. 

Recipe Ideas and Tips

  • Play around with the seasoning and spices to switch up the flavor. Try Cajun seasoning for something spicy, use Italian seasoning for a more herbal flavor, or lemon pepper for something clean. 
  • Try different flavors of sausage to change the flavor of the dish. You can get totally different flavors using sweet versus spicy sausage or a flavored sausage like pesto or spinach feta. 
  • If you are using pre-cooked sausages to make this dish, add them in the last 15 minutes of cooking.
  • If you want a heartier dish, you can add a can of chickpeas to the dish or serve it over some grains, pasta, or spaghetti squash. 
  • This will work with sweet potatoes or any type of white potato. Baby potatoes work great and are quick to prep since they only need to be halved or quartered.

More sausage recipes

The Recipe
Roasted sausages with potatoes, peppers, and onions on a plate with Parmesan cheese.

Roasted Italian Sausages with Potatoes, Peppers, and Onions

344 CAL 35g CARBS 14g FAT 21g PROTEIN
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  • 4 lean turkey Italian sausages
  • 1.33 lbs. red potatoes, washed and chopped (Paleo substitute sweet potatoes)
  • 1 onion, chopped
  • 2 red peppers
  • 1 green pepper
  • 4 garlic cloves, minced
  • 1 tbsp olive oil
  • 1/2 tsp. red pepper flakes
  • 1/4 cup low sodium chicken broth

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Preheat the oven to 400 degrees. Prep the ingredients, making sure the potatoes are chopped into 1/2 inch pieces to ensure they cook completely in the time allotted. If the potato chunks are larger, start them 15 minutes before the remaining ingredients.


Add the potatoes, onion, peppers, and garlic to a glass baking dish. Sprinkle with Italian seasoning, red pepper flakes, salt, pepper, olive oil, and chicken broth. Toss together using a spoon or your hands. Pierce the sausages with a fork. Nestle the sausages into the vegetables.


Bake for 30-35 minutes until vegetables are tender and cooked through. If the vegetables aren't browning, place them under the broiler for 3-4 minutes to brown.

Nutritional Facts
Serving Size: 1 sausage and 1.5 cups vegetables
Amount Per Serving
Calories 344
Calories from Fat 125
% Daily Value *
Total Fat 14g
Saturated Fat 3g
Monounsaturated Fat 0g
Polyunsaturated Fat 0g
Cholesterol 60mg
Sodium 707mg
Total Carbohydrate 35g
Dietary Fiber 5g
Sugars 7g
Protein 21g

* Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Nutritional Values provided are estimates only and may vary based on the preparation method.


This recipe can be made with any flavor of sausages and any spice mixture. It can also be made on a baking sheet without the chicken broth. The result will be crispier, more browned vegetables. If you prefer you can slice the sausages before cooking as well.
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About the author Meet Kristen McCaffrey
Hi, I’m the cookbook author, recipe developer, and food enthusiast behind Slender Kitchen. I am obsessed with making healthy food that is easy to prepare and absolutely delicious. Meal planning is my secret weapon and I hope I can make meal time easier for you with our tried and tested recipes and foolproof meal plans. Learn More
On Roasted Italian Sausages with Potatoes, Peppers, and Onions
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September 27, 2021 - 13:43
There is no olive oil in the ingredients list but there is oil in the instructions. Any special amount recommended?
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September 28, 2021 - 15:55
Updated! Thanks.
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Joan Johnson
June 11, 2020 - 18:52
Add a Rating:
You make me a great cook! This recipe is delicious!
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Kim Cox
February 7, 2019 - 16:12
Recipe calls for olive oil in step 2. How much? It is not listed in the ingredients.

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April 3, 2018 - 18:04
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Delicious! Made it with Italian chicken sausage and medley of different potatoes. Potatoes took a lot longer to cook, recommend putting them in first or cooking them a little longer after, also recommend spraying the glass pan with cooking spray to prevent vegetables from sticking
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