This is the dinner I make when I want something hot, cheesy, and ready with almost no active cooking time. Keto sausage parmigiana bakes sausage links right in the tomato sauce, then gets buried under ricotta, mozzarella, and Parmesan until it is bubbling.
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I build my own tomato sauce for this instead of reaching for a jar, since most store-bought marinara is watered down and more expensive than it should be for what you get. This is a one-dish dinner, and it is easy enough for a weeknight but rich enough to serve to company.
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Chef Jenn’s Take on Sausage Parmigiana
Most sausage parmigiana recipes lean on jarred marinara, and jarred marinara is where a lot of hidden sugar and thickeners sneak into an otherwise simple dish. It also tends to taste watered down next to something made from scratch.
I make my own tomato sauce and roast it in the oven rather than simmering it on the stovetop. Oven roasting concentrates the tomato flavor without much attention needed, and a double batch freezes well, so the sauce itself is rarely the reason this dish takes more than 30 minutes.
The other detail that matters is sausage quality. Look for a meaty sausage without a lot of filler, and check the label for added sugar, since some sausages carry more hidden carbs than people expect from a protein. The cheese layer, ricotta first, then mozzarella, then a light dusting of Parmesan, is what turns this from a baked sausage into something that reads like a real parmigiana.
What You’ll Love About Sausage Parmigiana
- Doubles or triples easily for a potluck or a week’s worth of dinners in the freezer.
- Comes together fast once the sauce is made, closer to a 30-minute dinner than an all-afternoon project.
- My kids eat this without complaint; cheese and sausage tend to win over most kitchens.
Ingredients
- Italian sausage – Hot or mild, your call. Look for a meaty sausage without a lot of filler.
- Ricotta cheese – Full fat, dolloped rather than spread, so it melts into pockets instead of a flat layer.
- Mozzarella cheese – Shredded, low moisture melts more evenly than fresh mozzarella here.
- Parmesan cheese – Grated or shredded, added as a light finishing layer.
- Tomato sauce – Homemade keeps this cleaner. If you use a jar, check the label for added sugar.
How to Make Sausage Parmigiana
Scroll down for the full recipe card with exact measurements and printable instructions.
Spread the tomato sauce in an even layer across the bottom of an oven-safe baking dish large enough to hold the sausage in a single layer.
Cut the sausage into quarters and lay the pieces on top of the sauce, pressing down slightly so they nestle into it.
Bake until the sausage is mostly cooked through, checking with a thermometer since sausage size affects timing more than most proteins.
Remove from the oven and top with dollops of ricotta, then a layer of shredded mozzarella, then a light dusting of Parmesan.
Return to the oven just until the cheese is melted and bubbling, and the sausage has reached a safe internal temperature.
Serve hot, straight from the baking dish.
Make It A Meal
I round this out with a Classic Caprese Salad more often than not, since the fresh tomato and basil balance the richness of the baked cheese. Low-Carb Sauteed Zucchini is another good option if you want something warm on the plate instead.
For a lighter side that still feels like an Italian dinner, Zucchini Fries work well alongside the sausage without competing with the sauce.
Storage
Store leftovers in an airtight container in the fridge for up to 4 days. Reheat in a 350°F oven until warmed through, or in the microwave in short bursts. This freezes well for up to 3 months, either baked or unbaked. Thaw overnight in the fridge before reheating or finishing in the oven.
Frequently Asked Questions
This recipe runs about 4 net carbs per serving, made with a homemade tomato sauce and no added sugar. The number in the recipe card below will recalculate once this post is republished, so use it as an estimate until then.
Yes, chicken sausage or any favorite sausage works in place of Italian sausage. Just check the label for hidden sugar or fillers before you buy.
Yes, the non-keto eaters in your house can spoon this over cooked pasta while the keto version stays as written. Both use the same baking dish and the same sauce.
Yes, this freezes well both before and after baking. Assemble it through the sausage step, freeze, then thaw and finish with the cheese layer when you’re ready to bake.
Add Preferred SourceLow-Carb Sausage Parmigiana
Ingredients
- 1 pound Italian sausage hot or mild
- 1/2 cup ricotta cheese
- 1/2 cup mozzarella cheese shredded
- 1/4 cup Parmesan cheese shredded or grated
- 2 cups oven-baked tomato sauce
Instructions
- This dish couldn’t be any easier; you already did most of the work with the oven-baked tomato sauce found here. Just put 2 cups of this yummy sauce into the bottom of an oven-safe dish big enough to hold all the sausage.
- Cut the sausage into quarters, and lay them on top of the tomato sauce, pressing them down slightly.
- Bake in a 425-F oven for about 15-20 minutes. Remove from oven and top with dollops of the ricotta, the mozzarella, and Parmesan cheese. Put it back into the oven for about 5 minutes until hot and bubbly!
- Serve with your favorite vegetable, and for the non-keto eaters, spoon a generous portion over cooked pasta.
Notes
Recipe Card Tips
- Check the sausage with a thermometer before serving. Sausage thickness varies by brand, so bake time alone isn’t a reliable doneness test.
- Dollop the ricotta rather than spreading it. Dollops melt into pockets of cheese instead of forming one flat, dense layer.
- Read the label on store-bought sausage and tomato sauce if you’re not making either from scratch. Added sugar shows up in both more often than expected.
Nutrition
A Note on Nutritional Information
Nutritional information for this recipe is provided as a courtesy and is calculated based on available online ingredient information. It is only an approximate value. The accuracy of the nutritional information for any recipe on this site cannot be guaranteed. Erythritol carbs (sugar substitutes) are not included in the carbohydrate counts as they have been shown not to impact blood sugar, and they have zero calories and zero carbs. Net carbs are the total carbs minus fiber.
Now this is what I call comfort food. Definitely going to try it.
I love recipes that have components that I can make extra of to pull out of the freezer at a later date. Tons of flavor in this recipe!
This is totally a freezer friendly dish, and it freezes great, too, once cooked!
So many great flavors in this recipe. I would love to try this for my family soon
This is my kind of dish! It looks easy to make, full-on flavor, and a meal my entire family will eat without complaint. I’m putting this on next week’s meal plan!
You’re going to love it! My kids gobble this up like crazy.
I love that this is a low carb dish whilst also looking like it is the perfect comfort food dish. My kids and husband would love this!
My husband and I have been on keto for a few weeks again so this recipe was a perfect dinner! I loved how filling it was, the flavors, and of course layers of cheese. I was glad I made extra because we froze the rest for another night!
This is such a rich and satisfying dish. That roasted tomato sauce is delicious and we loved all the cheese! Perfect comfort food.
I’ve never made my sauce in the oven before and now can’t wait to try it out!
Such a simple but delicious recipe! Make it with some zucchini noodles, and I’m good to go!