Easy oven baked Italian sausage with peppers and onions makes the simpliest one pan dinner in less than 30 minutes. You can make these roasted sausage links with pork or chicken or without veggies too.

Italian sausage baked in the oven is easy!
When you want the easiest dinner you can just throw together on a sheet pan, roasted Italian sausages in the oven is the perfect choice! Add bell peppers and onions with seasoning and balsamic for a one pan meal packed with Italian flavor.
Baking sausage links in the oven is something we do literally every single week whether it's baked Italian sausage, chicken sausage, or bratwurst. Call us the Italian sausage queens since we have over 20 recipes on our website.
You can even bake a sheet pan of sausage in the oven for weekly meal prep without the veggies and you can slice them or add them to other meals throughout your week. This is also a simple low carb sheet pan dinner that's high protein, gluten free, and macro friendly.
Ingredient notes
- Italian sausage links - use any type of raw Italian sausage like mild, sweet Italian, spicy Italian, or even Italian chicken sausages.
- Bell pepper - any color will work or use a variety of colors
- Red onion - swap with a yellow onion or sweet onion if that's what you have on hand
- Olive oil or another type of neutral cooking oil
- Garlic salt or a mix of salt and garlic powder
- Italian seasoning
- Balsamic vinegar or balsamic glaze
This is an overview of the main ingredients, the full instructions are at the bottom in the recipe card.
How to bake Italian sausage
In a medium-sized bowl, combine the sliced peppers and onion with the olive oil, garlic salt, Italian seasoning, and balsamic vinegar (or syrup). Stir to combine.
Place your Italian sausages on a sheet pan covered with parchment paper. Spread the sausage and veggies mix out so they'll brown during cooking.
Cooking time
Place the entire dish in a pre-heated 400 F oven bake for 15-minutes+, flipping the Italian sausages and stirring the vegetables after 10 minutes.
If you prefer to cook Italian sausage longer to get them darker in color, sausage can continue cooking up to 185-190 degrees Fahrenheit without starting to dry out. They're technically cooked through with an internal temperature of 165 degrees. Or you can do a quick broil at the end as a sneaky trick.
Serve with a simple salad and enjoy!
Extra helpful tips
- Don't overcrowd your baking dish or you will slow down the cook-time and they won't brown as well.
- Cooking this dish without the vegetables will speed up the cooking time and the sausages will get done faster.
- You can easily double this recipe to feed a larger crowd, but be sure you use a larger pan to accommodate.
- This same method works for any type of uncooked sausage or sausage links.
FAQ's
Yes, you can bake frozen Italian sausages in the oven. Place the sausages on a pan and bake covered with foil for 10 minutes. After 10 minutes, removed the foil, add the seasoned vegetables and balsamic vinegar, and continue baking. Be sure to flip the sausages and stir the vegetables after 10 minutes.
If you want to really crisp up your sausage and vegetables, broil your dish for the last 1-2 minutes of cook-time.
If you're cooking baked Italian sausage, setting the oven to 375-400 degrees Fahrenheit is the perfect cooking temperature.
Italian sausage is cooked through once it reaches an internal temperature of at least 165 degrees Fahrenheit.
A little pink in sausage is perfectly fine as long as the internal temperature of the cooked sausage is over 165 degrees Fahrenheit. Testing the sausage temperature with a digital thermometer is suggested.
More Italian sausage dinner ideas
- Sausage and peppers with marinara sauce
- Air fryer Sausage
- Instant pot sausage and peppers
- Stuffed Italian sausage with cheese inside
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Recipe
Roasted Italian Sausage in the Oven
Ingredients
- 1 package Italian sausage uncooked
- 2 bell peppers sliced
- ½ large red onion sliced
- 1 tablespoon olive oil
- ½ teaspoon garlic salt
- ½ teaspoon Italian seasoning
- 1 tablespoon balsamic vinegar
Instructions
- Preheat the oven to 400F and put the baking rack in the middle position.
- In a medium-sized bowl, add the sliced bell peppers, sliced onions, olive oil, garlic salt, pepper, Italian seasoning, and balsamic vinegar and combine.
- Lay the sausage on the baking sheet, add place the pepper onion mix around it.
- Bake the sausage and peppers for 10 minutes, flip the sausage and stir the pepper onion mix.
- Continue cooking until the sausages are browned and the peppers are cooked through, which took about 25 minutes. The internal temperature of the sausage should be at least 165F. Enjoy!
Nia says
followed instructions except no basalmic vinegar. it still turned out delicious. cooked package of 5 BRATS.