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Italian Sausage Bake

Published: Oct 19, 2022 · Modified: Aug 27, 2026 by Tabetha Klein · This post may contain affiliate links · Leave a Comment

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This is one of those really easy dinner night recipes that we make pretty often. Our Italian Sausage bake mixed peppers, onions, tomatoes, and garlic together with Italian sausage for a quick dinner that everyone is happy about. 

Hearty Italian sausage bake with peppers, onions, and fresh herbs in a skillet.

Italian sausage in general is a relatively inexpensive and convenient protein. We keep it in the house at all times for quick and easy dinners. It freezes well in airtight containers and can be used in a plethora of recipes. 

Personally, I prefer Costco's Italian sausage if I have a choice not only because it's delicious, but it also comes in a 4 pack (5 in each pack) which makes it super easy to throw 3 in the freezer and keep 1 in the refrigerator. We use it for soups, and spaghetti, grilling them for subs, or for this simple one-pan wonder. 

Italian Sausage Bake Ingredients

Cast Iron vs. Others...

We use our Cast Iron skillets for this recipe. They are super versatile and we love them a lot. The hardest part about being a good Cast Iron parent honestly is taking care of it properly. Don't let this hold you back though. You can find lots and lots of tutorials online on how to make them last long enough to pass down to your Grandkids. 

I prefer using a cast-iron skillet for this recipe since it can be thrown straight in the oven to finish, but there are lots of other options. Any oven-safe pan will work just fine, or if you don't have an oven-safe pan, you can easily modify this by cooking everything on the stovetop and then transferring it to a sheet tray or an oven-safe baking dish.  

Delicious Italian sausage bake with colorful peppers and fresh herbs in a skillet.

The Bell Peppers, Onions & Tomatoes

I am not super adventurous when it comes to my vegetable consumption. Bell pepper, red onions, and diced tomatoes are three I can get behind almost anytime. However, I do need them to be super tender which is another reason I love this recipe. When you finish everything in the oven, the peppers and onions have time to really break down and get beautiful soft.

For the tomatoes, fire-roasted or sun-dried are a quick way to level this recipe up. 

This recipe takes less than 30 minutes from start to finish. It's a staple in this house and we hope you enjoy it!

What To Pair with Your Italian Sausage Bake

Looking for something to make on the side? No worries! We almost always make Parmesan Mashed Potatoes when we make these. They are easy to throw together and pop in the oven to cook while you are working on your main course.

📖 Recipe

Hearty Italian sausage bake with peppers, onions, and fresh herbs in a skillet.

One-Skillet Italian Sausage Bake

Italian sausage roasted in one skillet with bell peppers, red onion, and garlic until everything turns caramelized and jammy. It's the weeknight dinner that tastes like you fussed, with one pan and almost no cleanup.
3 ratings (Click stars to rate)
Recipe by - Tabetha Klein
Print Recipe Pin Recipe Save Saved! Start Cooking
Prep Time 5 minutes mins
Cook Time 25 minutes mins
Total Time 30 minutes mins
Course Main Course
Cuisine Italian
Servings 4
Calories 426 kcal

Equipment

  • Cutting Board
  • Knife
  • Cast Iron Skillet or oven-safe pan/sheet tray
  • Tongs

Ingredients
 
 

  • 4-8 Italian Sausages
  • 2 Bell Pepper - sliced
  • 1 Red Onion - sliced
  • 1 tablespoon Garlic - minced
  • ½ teaspoon Oregano - dried
  • ½ teaspoon Thyme - dried
  • ½ teaspoon Basil - dried
  • ½ cup Diced Tomatoes - canned or fresh

Instructions
 

  • Preheat oven to 350 degrees
  • Mince your garlic and slice your bell peppers & red onions into thin strips. Set both aside, but don't mix together quiet yet.
  • Heat your Empty cast iron skillet with oil residue on stove top.
  • Add the Italian sausage and brown for 2-3 minutes.
    Raw sausages cooking in a cast iron skillet on a stove.
  • Flip the Italian sausage add the sliced bell peppers and onions. Cook for 2-3 more minutes.
    Sausages cooking with colorful bell peppers and onions in a skillet on stove.
  • Remove the Italian Sausage once both sides have a nice brown color. Set aside.
    Mixed sliced bell peppers and onions cooking in a skillet on stove.
  • Stir the peppers and onions around the pan and then add the garlic and cook for just a few minutes or until you can really smell it cooking, but be careful to not let it burn.
  • Add the diced tomatoes, oregano, thyme, and basil and cook for 1-2 more minutes.
    Sautéed onions, tomatoes, and bell peppers cooking in a skillet.
  • Season with kosher salt and fresh ground pepper.
  • Add the Italian sausage back into the pan and bake 10-15 minutes, or until the sausage is cooked all the way through (160) and the peppers and onions are tender.
    Chicken and vegetable stir-fry with bell peppers, onions, and tomatoes in a skillet.
  • Enjoy!
    Sausage bake with red and yellow peppers, onions, and tomatoes in a skillet.

Video

Notes

  • The Costco pack of Italian sausage has 5 links in it, which is why I used 5. You won't need to make more peppers and onions unless you are making more than 8 or so. 
  • My husband always eats 2, while the kids and I generally eat 1. Make enough for the people you are feeding. 
  • You could also add crushed red pepper to make this spicy if you like heat.
  • Eat on a roll, with potatoes, perogies or by itself. No wrong answer.
  • I am a fan of instant-read thermometers to double-check that my meat is cooked all the way through. Sausage needs to cook until 160 and it's nearly impossible to tell by touch. 
 

Nutrition

Serving: 1SausageCalories: 426kcalCarbohydrates: 9gProtein: 17gFat: 35gSaturated Fat: 13gPolyunsaturated Fat: 5gMonounsaturated Fat: 16gCholesterol: 85mgSodium: 866mgPotassium: 518mgFiber: 2gSugar: 4gVitamin A: 1916IUVitamin C: 84mgCalcium: 49mgIron: 2mg

Nutrition information is an estimate, calculated from the listed ingredients, and provided as a courtesy.

Keyword Italian, One Pan, Quick, Sausage
Tried this recipe?Mention @tabethas.table!

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About Tabetha Klein

Hi, I'm Tabi — the chef behind Tabetha's Table. I'm a Le Cordon Bleu grad (Class Valedictorian, 2007) and former Lead Chef Instructor, which is a fancy way of saying I've spent my whole career teaching people to cook. These days that happens right here: real recipes, the why behind them, and exactly where people mess them up — so you don't. When the smoker's not running, I'm feeding Jon and the kids something new. Come hang out with me on @tabethastable on Instagram and Tabetha's Table on Pinterest.

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