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Italian Sausage Pepper Casserole: 8 Amazing Steps

Okay, listen up, because I’m about to let you in on a little weeknight secret: my Italian Sausage Pepper Casserole. Yep, it’s *that* good. Honestly, it’s one of those meals that just happened one night when I was staring into the fridge, willing something delicious to appear. Sausage? Check. Peppers looking a little sad? Check. Crushed tomatoes lurking in the pantry? Bingo! And let me tell you, the result was pure magic.

A freshly baked Italian Sausage Pepper Casserole in a glass dish with a slice removed, showing the layers.

Now, I know what you’re thinking: “Another casserole?” But trust me, this ain’t your grandma’s casserole (unless your grandma was seriously awesome, then maybe!). This Italian Sausage Pepper Casserole is packed with flavor, super easy to throw together, and it’s a total crowd-pleaser. The best part? The sausage and peppers get all cozy and melty with the mozzarella, creating these pockets of pure cheesy goodness. Plus, the crushed tomatoes add this subtle sweetness that just ties everything together. My family begs for this, and honestly, it’s become my go-to when I need something quick, comforting, and seriously delicious. You *have* to try it!

Why You’ll Love This Italian Sausage Pepper Casserole

Seriously, where do I even start? This isn’t just *another* recipe; it’s a game-changer. Here’s why you’re going to be obsessed:

  • Weeknight Winner: Honestly, this comes together faster than ordering takeout. Perfect for those nights when you’re staring blankly into the fridge.
  • Seriously Customizable: Don’t like peppers? Swap ’em out! Got some mushrooms wilting in the crisper? Toss ’em in! This Italian Sausage Pepper Casserole is your canvas.
  • Comfort Food at Its Finest: Hearty sausage, tender peppers, and that gooey, melty cheese… it’s like a warm hug in a baking dish.
  • Gluten-Free Goodness: Yep, naturally gluten-free, so everyone can dig in! Just double-check your sausage to be 100% sure.

A slice of Italian Sausage Pepper Casserole on a white plate, showcasing layers of sausage, peppers, and melted cheese.

Ingredients for Italian Sausage Pepper Casserole

Alright, let’s talk ingredients! This Italian Sausage Pepper Casserole is pretty forgiving, but using good quality stuff *really* makes a difference. Here’s your shopping list:

  • Italian Sausage: You’ll need 1 pound, and I always grab it removed from the casing. It just makes things easier, ya know?
  • Onion: 1 large one, sliced. Don’t stress about getting it perfect; we’re going for rustic here!
  • Bell Peppers: 2 of ’em, any color you like! I usually go for one red and one green ’cause it looks pretty, but honestly, whatever you have on hand works just fine, sliced.
  • Crushed Tomatoes: Gotta have that tomato base! 1 (28 ounce) can is what you’ll need.
  • Dried Oregano: A teaspoon of this adds that classic Italian flavor we’re after.
  • Garlic Powder: Half a teaspoon. Because everything is better with garlic, right?
  • Salt and Pepper: To taste, of course. Don’t be shy!
  • Mozzarella Cheese: 8 ounces, shredded. This is the yummy, melty glue that holds it all together.

Freshly baked Italian Sausage Pepper Casserole in a white baking dish with peppers and a fried egg on top.

How to Make Italian Sausage Pepper Casserole: Step-by-Step Instructions

Okay, gather ’round, because we’re about to make some magic! This Italian Sausage Pepper Casserole is seriously easy, I promise. Just follow these steps and you’ll have a comforting, delicious dinner on the table in no time!

  1. Preheat Like a Pro: First things first, crank that oven up to 375 degrees F (190 degrees C). We want it nice and hot so everything gets all bubbly and delicious.
  2. Brown That Sausage: Grab your biggest skillet and toss in the Italian sausage (sans casing, remember?). Break it up with a spoon and cook it over medium heat until it’s browned and gorgeous. Don’t forget to drain off any extra grease – nobody wants a swimming pool in their casserole!
  3. Veggie Time: Add the sliced onion and bell peppers to the skillet with the sausage. Cook until they’re softened, about 5-7 minutes. You want them tender but still with a little bite, ya know?
  4. Tomato Tango: Stir in that can of crushed tomatoes, the dried oregano, garlic powder, salt, and pepper. Give it a good mix and bring it to a simmer. Let it bubble away for a few minutes to let those flavors get happy.
  5. Casserole Assembly: Now, pour that amazing sausage and pepper mixture into a 9×13 inch baking dish. Make sure it’s spread out evenly.
  6. Cheese It Up: Top the whole thing with that glorious shredded mozzarella cheese. Don’t be shy – the more cheese, the better, right?
  7. Bake to Perfection: Pop the baking dish into the preheated oven and bake for 20-25 minutes, or until the cheese is melted, bubbly, and lightly golden brown. Keep an eye on it – ovens can be quirky!
  8. Rest and Relax: Once it’s out of the oven, let the Italian Sausage Pepper Casserole stand for about 10 minutes before serving. This helps everything set up a bit and keeps you from burning your tongue on molten cheese (trust me, it’s happened!).

Close-up of Italian Sausage Pepper Casserole in a glass baking dish, showing layers of sausage, peppers, and melted cheese.

And that’s it! Seriously, wasn’t that easy? Now, grab a spoon and get ready to dig in to some serious Italian Sausage Pepper Casserole deliciousness!

Tips for the Best Italian Sausage Pepper Casserole

Want to take your Italian Sausage Pepper Casserole from “mmm, good” to “OMG, this is amazing!”? Of course, you do! Here are a few little secrets I’ve learned along the way:

  • Sausage Star Power: Seriously, splurge on good quality Italian sausage. It makes a HUGE difference in the overall flavor. Trust me on this one.
  • Veggie Vigilance: Don’t overcook those veggies! Soggy peppers are sad peppers. You want them tender-crisp, with a little bite.
  • Cheese Choice Matters: Use a good quality mozzarella. The cheap stuff can be kinda rubbery. You want that melty, gooey goodness!
  • Patience Pays Off: Resist the urge to dig in *immediately*! Letting the casserole rest for 10 minutes after baking allows the flavors to meld and the cheese to set up a bit. It’s worth the wait, I promise!

Variations for Your Italian Sausage Pepper Casserole

Okay, so you’ve made the basic Italian Sausage Pepper Casserole (and loved it, I hope!). Now, let’s get a little crazy and see how we can mix things up. The beauty of this recipe is how easily it adapts! Think of it as a starting point for your own casserole masterpiece. My personal favorite? Adding mushrooms, always!

  • Want to sneak in more veggies? Thinly sliced zucchini is *amazing* in this! It soaks up all the flavors. You know, kind of like my zucchini pizza casserole, but different!
  • Cheese lover? Okay, YES. Try adding a layer of ricotta cheese between the sausage and mozzarella. Trust me on this one!
  • Spice things up! Use hot Italian sausage for a real kick. Careful, it’s addictive!

Serving Suggestions for Italian Sausage Pepper Casserole

Alright, so you’ve got your delicious Italian Sausage Pepper Casserole, all bubbly and cheesy. Now, what do you serve with it? Don’t worry, I’ve got you covered! You can totally just eat it straight from the dish (no judgment here!), but if you want to make it a *real* meal, here are a few of my favorite things to serve alongside:

  • Rice or Pasta: Honestly, this is a classic for a reason! The sausage and pepper mixture is *amazing* spooned over a bed of fluffy rice or perfectly cooked pasta.
  • Side Salad: A simple green salad with a light vinaigrette adds a nice bit of freshness to balance out the richness of the casserole.
  • Garlic Bread: Buttery, garlicky bread? YES, PLEASE! Perfect for soaking up all those delicious juices.

Storage and Reheating Instructions for Italian Sausage Pepper Casserole

Got leftovers? Lucky you! This Italian Sausage Pepper Casserole keeps really well. Just pop it in an airtight container and it’ll be happy in the fridge for up to 3-4 days. For longer storage, you can freeze it for up to 2-3 months. When reheating, the microwave’s quickest, but the oven gets it all melty and delicious again. Just sayin’!

Frequently Asked Questions About Italian Sausage Pepper Casserole

Got questions about this Italian Sausage Pepper Casserole? Don’t sweat it! I’ve got answers! Here are some of the most common things people ask me about this recipe:

Can I use frozen vegetables in this casserole?

Okay, so technically, *yes*, you *can* use frozen veggies. But honestly? I wouldn’t recommend it. Frozen veggies tend to release a lot of water when they cook, which can make your casserole a little watery. If you *absolutely* have to use frozen, make sure to thaw them completely and squeeze out as much excess water as possible before adding them to the skillet.

Can I make this Italian Sausage Pepper Casserole ahead of time?

You betcha! This Italian Sausage Pepper Casserole is actually a great make-ahead meal. Just assemble the casserole, cover it tightly with plastic wrap, and pop it in the fridge. You can do this up to 24 hours in advance. When you’re ready to bake it, just take it out of the fridge and let it sit at room temperature for about 30 minutes before baking as directed. Easy peasy!

Can I use a different type of sausage for this recipe?

Absolutely! While I personally love Italian sausage in this recipe, you can totally use a different type of sausage if you prefer. Turkey sausage, chicken sausage, even chorizo would be delicious! Just make sure to adjust the cooking time as needed, depending on the type of sausage you use.

Is this Italian Sausage Pepper Casserole gluten-free?

Yep! This recipe is naturally gluten-free, as long as you use gluten-free Italian sausage. So, double-check the package to make sure it doesn’t contain any gluten-containing ingredients. Also, if you plan on serving it with pasta, make sure you’re also using gluten-free pasta!

Nutritional Information Disclaimer

Okay, quick disclaimer! The nutritional info here is just an estimate. It can totally change depending on the brands and ingredients you use. So, ya know, don’t take it as gospel!

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A slice of Italian Sausage Pepper Casserole on a wooden board, showcasing the layers of sausage, peppers, and cheese.

Italian Sausage Pepper Casserole


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  • Author: Elisa
  • Total Time: 40 min
  • Yield: 6 servings 1x
  • Diet: Gluten Free

Description

A hearty casserole with Italian sausage, peppers, and cheese.


Ingredients

Scale
  • 1 pound Italian sausage, removed from casing
  • 1 large onion, sliced
  • 2 bell peppers (any color), sliced
  • 1 (28 ounce) can crushed tomatoes
  • 1 teaspoon dried oregano
  • 1/2 teaspoon garlic powder
  • Salt and pepper to taste
  • 8 ounces mozzarella cheese, shredded

Instructions

  1. Preheat oven to 375 degrees F (190 degrees C).
  2. In a large skillet, brown Italian sausage over medium heat. Drain excess grease.
  3. Add onion and bell peppers to the skillet and cook until softened, about 5-7 minutes.
  4. Stir in crushed tomatoes, oregano, garlic powder, salt, and pepper. Bring to a simmer.
  5. Pour mixture into a 9×13 inch baking dish.
  6. Top with mozzarella cheese.
  7. Bake for 20-25 minutes, or until cheese is melted and bubbly.
  8. Let stand for 10 minutes before serving.

Notes

  • For a spicier casserole, use hot Italian sausage.
  • Add other vegetables such as mushrooms or zucchini.
  • Serve over rice or pasta.
  • Prep Time: 15 min
  • Cook Time: 25 min
  • Category: Dinner
  • Method: Baking
  • Cuisine: Italian

Nutrition

  • Serving Size: 1 slice
  • Calories: 350
  • Sugar: 8g
  • Sodium: 700mg
  • Fat: 25g
  • Saturated Fat: 12g
  • Unsaturated Fat: 10g
  • Trans Fat: 0g
  • Carbohydrates: 15g
  • Fiber: 3g
  • Protein: 20g
  • Cholesterol: 75mg

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