Hearty Italian Stuffed Peppers with Sausage and Mozzarella

These Italian stuffed peppers give you a full dinner in one tidy package. A savory mix of Italian sausage, rice, and marinara fills sweet bell peppers, with a blanket of melted mozzarella on top.

Bake them until the peppers are soft and the cheese is golden and bubbly. It is the kind of meal that fills the kitchen with a warm, garlicky aroma and comes out of the oven looking like you worked much harder than you did.

What Makes These Stuffed Peppers a Favorite

The filling stays moist from the sausage fat and a little marinara mixed right in. The peppers soften in the oven and taste sweet against the rich, garlicky meat.

A layer of mozzarella on top gets stretchy and brown in spots. Every bite has a little of everything, and the rice makes it hearty enough to stand on its own.

Ingredients

• 4 large bell peppers: red, yellow, or orange give the sweetest flavor
• 1 lb Italian sausage: mild or hot, casings removed if using links
• 1 cup cooked rice: white or brown, whatever you have on hand
• 1 cup marinara sauce: divided, plus extra for serving if you like
• ½ cup diced onion: yellow or white
• 2 cloves garlic: minced
• 1 large egg: lightly beaten
• 1 cup shredded mozzarella: full-fat melts best
• ¼ cup grated Parmesan: the fine, sandy kind
• 1 tsp Italian seasoning: dried is fine
• ½ tsp salt: kosher or sea salt
• ¼ tsp black pepper: freshly ground
• Olive oil: for the pan and the baking dish

Variations / Substitutions

• Swap the sausage: use ground beef, ground turkey, or plant-based crumbles. If you use lean meat, add a drizzle of olive oil to keep the filling from drying out.
• No rice: cooked quinoa, farro, or even cauliflower rice work as a swap. The filling will be a little less sturdy but still holds together.
• Change the cheese: provolone, fontina, or a smoked mozzarella are all great here. A sharp white cheddar also works.
• Vegetarian version: replace the sausage with 1½ cups cooked lentils and increase the marinara by a couple spoonfuls so it does not turn dry.
• If you want a lighter spin, try these Mexican Stuffed Peppers with black beans and corn.

How to Make Italian Stuffed Peppers

Step 1: Brown the Sausage and Onions

Set your oven to 375°F (190°C). Place a large skillet over medium heat, drizzle in a little olive oil, and add the 1 lb Italian sausage and ½ cup diced onion. Cook, breaking up the meat with a spoon, until the sausage is no longer pink and the onion is soft, about 8 minutes. Stir in the 2 minced garlic cloves and 1 tsp Italian seasoning and cook 1 minute more. Add ½ cup of the marinara sauce, stir to coat, and take the pan off the heat.

The mixture will look moist but not soupy. You want enough liquid so the rice can soak it up as it bakes without turning the peppers into a puddle.

Step 2: Mix the Filling

Scrape the sausage mixture into a large bowl. Add the 1 cup cooked rice, the beaten egg, ¼ cup grated Parmesan, ½ tsp salt, and ¼ tsp black pepper. Stir everything together until the egg and rice are evenly distributed. The filling should be cohesive enough to mound on a spoon.

The egg acts like glue here, so when you slice into a baked pepper the filling stays in tidy slices rather than spilling across the plate.

Step 3: Stuff the Peppers

Cut the tops off the 4 bell peppers and pull out the seeds and white ribs. If a pepper refuses to stand upright, slice a paper-thin sliver off the bottom to give it a flat base, being careful not to cut through to the cavity. Spoon the filling into each pepper, pressing gently so it reaches all the corners but does not pack down like a brick.

Stand the stuffed peppers in a baking dish just big enough to hold them snug. Drizzle a little olive oil over the tops, then pour the remaining ½ cup marinara sauce over and around the peppers.

Step 4: Top and Bake Until Bubbly

Cover the dish with foil and bake for 30 minutes. The steam will soften the peppers and marry the filling. Uncover, scatter the 1 cup mozzarella evenly over the top of each pepper, and bake for another 10 to 15 minutes, until the cheese is melted and spotted with golden brown patches.

Pull the dish from the oven and let it rest for 5 minutes before serving. The peppers will be tender and the filling piping hot. Spoon the saucy juices from the bottom of the dish over each pepper right before you set it on the plate.

Tips for the Best Stuffed Peppers

• If your peppers wobble in the dish, tuck balls of crumpled aluminum foil around them to hold them steady while they bake.
• A mix of bell pepper colors on the plate looks beautiful, but stick with red, orange, or yellow for the sweetest taste. Green peppers are earthier and a little bitter, though they work in a pinch.
• The filling is already fully cooked, so you are really just baking to soften the peppers and melt the cheese. Do not skimp on the covered bake time, or the peppers will stay too firm.
• Leftover filling that does not fit in the peppers can be packed into a small oven-safe ramekin and baked alongside the dish.

Bake times for pepper softness:

Storing and Reheating Leftovers

• Refrigerate: Cool the peppers completely, then store in a sealed container for up to 4 days. Keep them in the baking sauce so they do not dry out.
• Reheating: Warm in a 350°F oven, covered, for 15 to 20 minutes, or microwave in 90-second bursts until heated through.

What to Serve With Italian Stuffed Peppers

A simple green salad with a sharp lemon vinaigrette cuts through the richness of the sausage and cheese. Garlic bread is an easy side for soaking up the extra marinara left in the dish. Roasted broccoli tossed with olive oil and salt balances the meal with something crisp and green.

Frequently Asked Questions

Can I make these ahead of time?

Yes, assemble the stuffed peppers up to a day in advance, cover, and refrigerate. Add 5 to 10 minutes to the covered bake time since you are starting from cold.

Can I freeze them?

You can freeze the baked and cooled peppers in a freezer-safe container for up to 3 months. Thaw overnight in the fridge and reheat in the oven until hot.

My peppers came out watery, what went wrong?

Extra liquid from the peppers can pool in the dish if the filling was too wet or if you added too much sauce on top. Use a slotted spoon when serving, and next time reduce the marinara in the filling by a tablespoon or two.

Italian Stuffed Peppers Recipe

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Prep Time 20 minutes mins

Cook Time 45 minutes mins

Total Time 1 hour hr 5 minutes mins

Servings: 4 servings

Calories: 480

Ingredients Method Notes

Ingredients

  

• 4 large bell peppers
• 1 lb Italian sausage
• 1 cup cooked rice
• 1 cup marinara sauce, divided
• ½ cup diced onion
• 2 cloves garlic, minced
• 1 large egg, lightly beaten
• 1 cup shredded mozzarella
• ¼ cup grated Parmesan
• 1 tsp Italian seasoning
• ½ tsp salt
• ¼ tsp black pepper
• Olive oil

Method

 

1. Preheat oven to 375°F. In a skillet over medium heat with a drizzle of olive oil, cook the sausage and onion until browned, about 8 minutes. Add garlic and Italian seasoning, cook 1 minute. Stir in ½ cup marinara, remove from heat.
2. In a bowl, combine the sausage mixture, rice, egg, Parmesan, salt, and pepper. Mix well.
3. Cut tops off peppers and remove seeds. Spoon filling into each pepper, packing gently. Stand peppers in a baking dish, drizzle with olive oil, and pour remaining ½ cup marinara over and around them.
4. Cover with foil and bake 30 minutes. Uncover, top each pepper with mozzarella, and bake 10-15 minutes more until cheese is melted and bubbly. Let rest 5 minutes before serving.

Notes

If the peppers wobble, line the dish with crumpled foil to prop them up. Any filling that did not fit can be baked in a small dish alongside the peppers.