sausage & peppers casserole

Sausage and Peppers Casserole

Mmmmm. Mmmmm. Mmmmm. Sausage and peppers with onions. This is one of those classic Italian-American street food, lunch cart dishes.

Such a satisfying combo! Italian sausages cooked with bell peppers, sweet onions, meaty mushrooms, and garlic


sausage & peppers casserole
Easy & satisfying Italian Classic



This dish is typically made with a several different colors of bell peppers—usually one green, one red, and one either yellow, orange, or purple. That said, use whatever color bell peppers you like! If you don’t like a color, skip it and just use more of another color. I used red & green to mimic the Italian flag colors.


Sausage & peppers casserole
Spicy cheesy goodness


Why is it so good? Because I use a mix of Sweet and Hot Italian sausage. I love doing this combo because the mix of sweet and hot is just the right amount of flavor that doesn’t over power.


but if you want a milder dish, use only the sweet sausages and reduce the amount of chili pepper flakes in the recipe. Likewise, if you would like it spicier, use all hot sausages and/or bump up the amount of chili pepper flakes.


This hearty dish can be enjoyed on its own but you could also enjoy it with a salad. A simple green salad without an overpowering dressing. Coleslaw also pairs very well.


If you are making this as a family dish and enjoying it with people who also eat carbs, you could serve it along side bread like breadsticks dinner rolls pita bread garlic bread hot dog buns, use it as a filling in sandwiches you could put it in wraps or tortillas.


CJ felt this casserole was a winner!
CJ felt this casserole was a winner!


Sausage & peppers casserole
Mmmmm good stuff


Two main things that make this so easy:

  1. It’s fried up in just one skillet
  2. It cooks in the oven-no babysitting necessary!




Mushrooms are one of my favorite vegetables(well, technically they’re a fungi)….. although I despised them as a child. I’m so glad that I’m a grown-up now. LOL. And this tasty casserole is one of my favorite ways to make them.


You can use white mushrooms if that’s all you can find… But I definitely love baby portobellos or Cremini mushrooms here, simply because they are very “meaty“ and add to the rich rustic flavor of this casserole.




Well if you watched the video you know that I thought this was delicious!  This type of dish was almost inherently keto without very few modification.  I’m sure we used far less onion than someone doing keto would, just to keep the carbs lower and of course we used Keto friendly fats and oils.  We also made sure that our sausage was very low in carbs, so those are tips to help you.  There are a lot of dishes that can easily be made keto friendly with very few modifications.  Keto doesn’t have to be hard–you got this!

Don’t forget to subscribe to our blog, if you haven’t already.  We plan on releasing keto content that will be exclusive for blog subscribers.  Also feel free to share this recipe with family and friends! If you haven’t already consider subscribing over on YouTube, we’d love to have you as part of our Keto Family.


Keto Quick Start Guide

Here is a companion blog post to get the best results from our Keto Quick Start Guide



sausage & peppers casserole
sausage & peppers casserole
sausage & peppers casserole
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4.60 from 5 votes

Sausage & Peppers Casserole

Course Keto casseroles, keto dinner ideas, keto dinner, low carb dinner ideas, keto dinners, low carb casseroles
Cuisine Italian
Keyword easy casserole, easy keto meals, low carb casseroles
Prep Time 15 minutes
Cook Time 30 minutes
Servings 8
Calories 396kcal


  • 10 oz. brown Cremini or portabella mushrooms washed and cut in thick slices
  • 24 oz hot or mild pork Italian sausage
  • 1 red bell pepper cut into thick strips
  • 1 green bell pepper cut into thick strips
  • 1 tsp. Italian herb blend
  • 1 tsp. garlic bread Seasoning or use any all-purpose seasoning blend if you don’t have
  • 2 cloves fresh garlic
  • 1 tsp. fresh basil optional
  • 2 cups grated Mozzarella more or less as desired


  • Preheat oven to 375F/190C. Spray a large baking dish with non-stick spray.
  • Heat a little olive oil in another large non-stick pan and start brown the sausage over medium-high heat, turning occasionally to brown on all sides. (If you’re using pre-cooked sausage you can skip this step and just cut sausage before you brown it.)
  • Remove sausage to the casserole dish. Set aside.
  • Sauté mushrooms peppers and onions in the reserved drippings of the sausage pan. Add a tablespoon of butter if necessary.
  • Layer the peppers, onion, and the mushrooms in the baking dish. Sprinkle with desired amount of grated mozzarella.
  • Bake about 25 minutes, or until all ingredients are sizzling hot and the cheese is melted and nicely browned.



Total carbs: 5g
fiber: 1g
Net carbs:4g
serves 8
serving size 6oz
sausage & peppers casserole
sausage & peppers casserole


Serving: 6oz | Calories: 396kcal | Carbohydrates: 5g | Protein: 19g | Fat: 33g | Saturated Fat: 13g | Trans Fat: 1g | Cholesterol: 87mg | Sodium: 1041mg | Potassium: 433mg | Fiber: 1g | Sugar: 2g | Vitamin A: 753IU | Vitamin C: 33mg | Calcium: 172mg | Iron: 2mg


In this section we try and highlight other recipes that might interest you.  This week we decided to highlight another very popular and easy to make recipe:




Keto Cheesy Sausage Puffs




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4.60 from 5 votes (5 ratings without comment)

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