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Low Carb Sausage and Spinach Casserole

Comfort food doesn’t have to be full of carbs. This Low Carb Sausage and Spinach Casserole tastes like a delicious lasagna, but by skipping the noodles, you save all those unnecessary carbs. It’s not short on flavor, though! With sausage, spinach, peppers, onions and lots of cheese, your whole family will love it whether they’re on a low carb diet or not! It’s just one of our simple low carb meals that we can eat again and again.

Low Carb Sausage and Spinach Casserole - comfort food without the carbs!

People tend to think that when you’re on a low carb diet, you have to give up your favorite foods. That’s so not the case. With a few modifications or low carb substitutions, you can have just about anything you want.

Take this low carb sausage and spinach casserole, for example. My kids love it over pasta (and admittedly, so do I). But when I’m watching my carbs and don’t have any low carb pasta on hand, I eat it straight from the bowl. No pasta needed — it’s absolutely delicious without it.

Low Carb Sausage and Spinach Lasagna Casserole

And what better way to get your kids to eat a ton of veggies in one dish? I love sneaking in spinach where I can, and trust me, they don’t even notice it’s there. It blends right in with all that ooey, gooey cheese and savory meat.

Here’s another recipe you might enjoy: Low Carb Eggplant Lasagna

But I know what you’re waiting for: the recipe! Here it is. Make it ASAP… You won’t regret it!

Low Carb Sausage and Spinach Lasagna Square

Low Carb Sausage and Spinach Casserole

Joyce Zaharadias
This low carb sausage and spinach casserole is comfort food at it's best -- without all the carbs! The whole family will love it. Eat it as is or serve it over pasta for the kids.
5 from 2 votes
Prep Time 10 mins
Cook Time 40 mins
Total Time 50 mins
Course Dinner
Cuisine Italian
Servings 6 servings
Calories 513 kcal


  • 1 pound Italian sausage links hot or sweet, or a mixture, quartered
  • 1 14.5 oz can of diced tomatoes
  • 1 8- oz can tomato sauce
  • 1 cup medium-sized red bell pepper chopped
  • 1 cup medium-sized green bell pepper chopped
  • 1 cup medium onion cut in thin wedges
  • Salt and pepper to taste
  • 1 pound Ricotta cheese
  • 2 eggs
  • 1/2 cup Parmesan cheese
  • 2 cups Fresh spinach
  • 3/4 cup mozzarella cheese shredded


  • Preheat oven to 375°F
  • Cook the sausage as directed.
  • Add diced tomatoes, tomato sauce, peppers and onion and simmer until vegetables are cooked.
  • Add salt and pepper.
  • In a bowl whisk together the Ricotta cheese and eggs until smooth.
  • Stir in Parmesan cheese and spinach.
  • Fill casserole dish layering sauce from meat, spinach mixture, meat & sauce, etc.
  • Add mozzarella cheese on top.
  • Bake till heated through, approximately 30 minutes.


Serving: 1gramsCalories: 513kcalCarbohydrates: 20gProtein: 33gFat: 34gSaturated Fat: 15gPolyunsaturated Fat: 20gCholesterol: 147mgSodium: 1139mgFiber: 3gSugar: 8g
Tried this recipe?Let us know how it was!
Cheesy Low Carb Sausage and Spinach Lasagna

Look at all that melted cheese, big hunks of meat and piles of veggies. You don’t get much better than that.

Cheesy Low Carb Sausage and Spinach Casserole

For more delicious low carb dinner ideas, check out these posts:

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Low Carb Crock Pot Pizza Casserole

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Recipe Rating


Sunday 5th of December 2021

It says tomato sauce in the directions but it’s not in the listed ingredients. How much tomato sauce is supposed to be used?

Donella Crigger

Monday 6th of December 2021

Sorry about that! One 8-oz can of tomato sauce. I've updated the recipe card to reflect that. Thank you for the heads up.

Carol Hoyt

Monday 18th of October 2021

Onions are listed twice in the recipe - do you add both the diced onions and the onions cut into wedges at the same time?

Donella Crigger

Monday 18th of October 2021

Hi Carol,

I'm sorry. Onions should have only been listed one time. I've updated the recipe card to reflect this. Thanks for bringing it to my attention!