Baked Spaghetti Casserole

I love this Baked Spaghetti Casserole made with Fiber Gourmet Light Spaghetti for a dish with real pasta flavor that’s fairly low in carbs. You can also use Palmini Pasta for even lower carbs, or make it with whole wheat spaghetti if you don’t mind a few more carbs!

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Today I’m updating this Baked Spaghetti Casserole recipe to use the Fiber Gourmet Light Spaghetti that’s become my preferred low-carb pasta, and I love being able to use a reduced-carb spaghetti that tastes exactly like regular pasta. And this favorite recipe made with Fiber Gourmet Spaghetti has only 21.9 net carbs (and 38.5 grams of protein) in a serving!

Of course I realize that option will be too high in carbs for people who are following Keto, so I’m also giving you directions for using Palmini Angel Hair Pasta (made with hearts of palm) for a version with only 11.5 net carbs, and that option is also gluten-free. And if you don’t care about carbs and/or don’t want to buy a special type of spaghetti, there are also tips for making this with whole wheat spaghetti.

Kara and I made the Fiber Gourmet version of this recipe and photographed it twice, and I do wish we had better photos to capture how delicious it was. (Some days that is just not happening.) But trust me, whichever spaghetti option you use I think you’ll find Baked Spaghetti Casserole is a comforting dinner you’ll want to make over and over!

What ingredients do you need?

(This is only a list of ingredients; please scroll down for complete printable recipe. Or if you use the JUMP TO RECIPE link at the top of the page, it will take you directly to the complete recipe with ingredient amounts.)

• Fiber Gourmet Light Spaghetti (affiliate link) or use Palmini Angel Hair (affiliate link) or whole wheat spaghetti if you prefer
• Olive Oil (affiliate link)
• Italian Sausage (see notes)
• onion
• Minced Garlic (affiliate link)
• Rao’s Pasta Sauce (affiliate link), I used Tomato Basil Sauce
• Cottage Cheese (or Ricotta Cheese)
• eggs
• coarsely-grated Parmesan cheese
• Ground Fennel (affiliate link)
• Italian Herb Seasoning (affiliate link)
• grated Mozzarella Cheese

What is Fiber Gourmet Light Pasta?

Fiber Gourmet Light Pasta (affiliate link) is a high-fiber pasta made in Italy that comes in Penne, Rotini, Spaghetti, and Elbows. The Fiber Gourmet Pasta tastes just like regular pasta and is made with wheat, but it’s higher in fiber. Both Kara and I are loving this new pasta option, just search “Fiber Gourmet” on the website to find other recipes where we’ve used it.

How Expensive is Fiber Gourmet Light Pasta?

The one thing that’s a downside to the Fiber Gourmet Pasta for some people will be the price. I haven’t found it in any stores, near me and when I order from Amazon I’m careful to choose the pack with six boxes so it comes out to about $6.66 per box, Admittedly that’s a bit pricey, but it’s worth it for me when I’m craving pasta and want a lower-carb pasta that tastes just like regular pasta.

How low in carbs is the Baked Spaghetti Casserole?

• If you make Baked Spaghetti with my preferred Fiber Gourmet Light Spaghetti it has 21.9 net carbs and 38.5 grams of protein.
• If you make Baked Spaghetti with Palmini Angel Hair Pasta, it has 11.5 net carbs per serving and about 35 grams of protein, and this option is gluten-free.
• If you make Baked Spaghetti with whole wheat spaghetti it has about 25 net carbs and a bit less fiber and protein than Fiber Gourmet Light Spaghetti. (Different brands will vary.)

What Pasta Sauce Did I Use for Baked Spaghetti Casserole?

I’m a huge fan of Rao’s Pasta Sauce (affiliate link), which is low in carbs and doesn’t have added sugar. I used Rao’s Tomato Basil Sauce for this recipe. If you don’t want to splurge for Rao’s sauce, look for a pasta sauce with the least amount of sugar and lowest carbs per serving you can find.

What Italian Sausage did I use for Baked Spaghetti Casserole?

We used Spicy Pork Italian sausage for this Spaghetti Casserole, but you can use the mild sausage if you prefer, especially if you’re making this for kids. We used pork Italian Sausage but turkey sausage would be great if you can find it. This casserole can also be made with ground beef if you prefer.

Does Baked Spaghetti Casserole freeze well?

After Kara and I perfected this recipe, we put some in the freezer to see how well it would freeze. And a week later when we thawed and heated it in the microwave we both thought it was just as good (if not better) after being frozen!

How to Make Baked Spaghetti Casserole with Fiber Gourmet Light Pasta:

(This is only a summary of the steps for the recipe; please scroll down for complete printable recipe. Or if you use the JUMP TO RECIPE link at the top of the page, it will take you directly to the complete recipe.

1. Preheat oven.
2. Bring a pot of water to a boil, then break Fiber Gourmet Light Spaghetti into thirds, add to pot, and cook pasta until it’s al dente.
3. While pasta cooks, heat olive oil in frying pan
4. Add Italian Sausage, squeezing out of links and cooking until it’s browned, breaking apart with a turner.
5. Push sausage over; add onion and saute about 5 minutes. Then add garlic and cook a few minutes more.
6. Add pasta sauce to pan and cook the sausage/sauce mixture at a low simmer until the sauce is thick, about 15 minutes.
7. Stir eggs, Ground Fennel, Italian seasoning, and Parmesan cheese into the Cottage Cheese (or Ricotta) and measure out Mozzarella.
8. When it’s cooked but still has a slight bite, drain the pasta well in a colander placed in the sink.
9. Spray a casserole dish with non-stick spray. Make layers in casserole dish with half the cooked spaghetti, half the sauce and sausage mixture. half the Cottage Cheese egg mixture, and half the grated Mozzarella.
10. Make a second layer of spaghetti, sauce mixture, cottage cheese egg mixture, and Mozzarella.
11. Bake casserole uncovered about 35-40 minutes, or until it’s bubbling and the top is browned.
12. Let sit for 5 minutes, then cut into squares and serve.

How to Make Baked Spaghetti Casserole with Palmini Angel Hair Pasta:

1. Preheat oven.
2. Drain two 12 oz. packages Palmini Angel Hair Pasta into colander, rinse well, then use kitchen shears to cut Palmini Pasta into slightly shorter pieces, and let it drain again.
3. While pasta drains, follow instructions above to heat olive oil, cook sausage, cook onions and garlic, add sauce, and let sausage/sauce mixture simmer.
4. Combine beaten eggs, cottage cheese, Parmesan cheese, and spices as above, and measure out Mozzarella.
5. Spray casserole dish, then make layers as above with half Angel Hair Pasta, sauce and sausage mixture, cottage cheese egg mixture, and Mozzarella.
6. Make a second layer of each ingredient as above.
7. Bake casserole uncovered about 35-40 minutes, or until it’s bubbling and the top is browned.
8. Let sit for 5 minutes, then cut into squares and serve.

How to Make Baked Spaghetti Casserole with Whole Wheat Spaghetti:

1. Instructions are the same for whole wheat spaghetti as Fiber Gourmet Light Spaghetti, but the cooking time for whole wheat spaghetti (to boil the pasta) will be shorter; check the package for that timing.
2. Fiber Gourmet Light Spaghetti comes in an 8 oz. package, so that’s the amount we used. You may prefer to use slightly more spaghetti if you’re using whole wheat spaghetti (although that will increase the amount of carbs.)

More recipes with low-carb or lower-carb Pasta:

• Pasta with Sausage and Mushrooms (three pasta options)
• Zucchini Pesto Pasta (made with Fiber Gourmet Light Penne)
• Pasta with Sausage and Kale (three pasta options)

Weekend Food Prep:

This Baked Spaghetti Casserole recipe has been added to a category called Weekend Food Prep  to help you find recipes you can prep or cook on the weekend and eat during the week!

Print

Yield: 8 servings

Baked Spaghetti Casserole

Prep Time 25 minutes

Cook Time 40 minutes

Total Time 1 hour 5 minutes

We loved this Baked Spaghetti Casserole that's made with Fiber Gourmet Light Spaghetti, and it can also be made with Palmini Angel Hair for even fewer carbs, or use whole wheat spaghetti if you prefer. No matter which type of pasta you use, this is a comfort food meal that the whole family will love!

Ingredients

• 8 oz. package of Fiber Gourmet Light Spaghetti
• 1 T olive oil
• one 19 oz. pkg. Italian Sausage (see notes)
• 1 small onion, chopped
• 2 T minced garlic
• 24 oz. jar Rao's Tomato Basil Sauce (see notes)
• 3 cups cottage cheese
• 3 eggs, beaten
• 2 tsp. ground fennel
• 2 tsp. Italian seasoning
• 1/2 cup coarsely-grated Parmesan cheese
• 2 cups grated Mozzarella Cheese

Instructions

Instructions for Spaghetti Casserole made with Fiber Gourmet Light Spaghetti:

1. Preheat oven to 375F/190C. 
2. Bring a pot of salted water to a boil. When it's boiling, break Fiber Gourmet Light Spaghetti into thirds and add to water. Cook the pasta until it's al dente, (about 18-20 minutes for Fiber Gourmet where I live, but I would start to check after about 15 minutes.)
3. While pasta drains, heat olive oil in a non-stick frying pan with high sides.
4. Add the Italian Sausage, squeezing it out of the links. Cook sausage until it’s browned, breaking apart with a turner as it cooks.
5. Push the sausage over (and for pork sausage, blot some fat from the pan if you prefer less fat.) Add chopped onions and cook about 3 minutes. Then add minced garlic and cook a few minutes more.
6. Then add the pasta sauce to the pan with the sausage and cook at a low simmer until the sauce is thick, about 15 minutes.
7. Stir beaten eggs, Ground Fennel, Italian seasoning, and grated Parmesan into the Cottage Cheese (or Ricotta) and measure out the grated Mozzarella.
8. When it's cooked but still has a slight bite, drain the pasta well into a colander placed in the sink.
9. Spray a casserole dish with non-stick spray. (We used a dish that was 7.5" x 11.5" but any size close to that will work.)
10. In the casserole dish, make layers with half the cooked spaghetti, half the reduced sauce and sausage mixture, half the Cottage Cheese and egg mixture, and half the grated Mozzarella.
11. Make a second layer of spaghetti, sausage and sauce mixture, cottage cheese and egg mixture, and Mozzarella.
12. Bake the casserole uncovered about 35-40 minutes, or until it’s bubbling and the top is nicely browned.
13. Let sit for 5 minutes, then cut into squares and serve.

Instructions for Baked Spaghetti Casserole with Palmini Angel Hair Pasta:

1. Preheat oven as above.
2. Drain two 12 oz. packages Angel Hair Pasta into a colander, rinse well, use kitchen shears to cut Palmini Pasta into slightly shorter pieces, and let it drain again.
3. While pasta drains, follow instructions above to heat olive oil, cook sausage, cook onions and garlic, add pasta sauce to the pan, and let sauce simmer with the sausage until reduced.
4. Combine beaten eggs, cottage cheese, Parmesan cheese, and spices as above, and measure out the Mozzarella.
5. Spray casserole dish as above. 
6. Make layers as above with half Palmini Angel Hair, sauce and sausage mixture, cottage cheese and egg mixture, and grated Mozzarella.
7. Make a second layer of each ingredient as above.. 
8. Bake the casserole uncovered about 35-40 minutes, or until it’s bubbling and the top is nicely browned.
9. Let sit for 5 minutes, then cut into squares and serve.

Instructions for Baked Spaghetti made with Whole Wheat Spaghetti:

1. Instructions are the same for whole wheat spaghetti as they are for Fiber Gourmet Light Spaghetti, but the cooking time for whole wheat (to boil the pasta) will be shorter; check the package for that.
2. Fiber Gourmet Light Spaghetti comes in an 8 oz. package, so that is the amount we used. You may prefer to use slightly more spaghetti for whole wheat spaghetti (although that will increase the amount of carbs.)

Notes

• Baked Spaghetti with my preferred Fiber Gourmet Light Spaghetti has 21.9 net carbs and 38.5 grams of protein.
• Baked Spaghetti with Palmini Angel Hair Pasta has 11.5 net carbs per serving and about 35 grams of protein.
• Baked Spaghetti with whole wheat spaghetti has about 25 net carbs and a slightly less protein and less fiber than Fiber Gourmet Light Spaghetti; different brands will vary.

Use turkey or pork Italian Sausage and hot or mile sausage, whichever you prefer.

Use Ricotta Cheese instead of Cottage Cheese if you prefer.

Use the lowest sugar pasta sauce you can find if you don't have Rao's.

Leftovers from this casserole will keep in the fridge for at least a week. It also freezes well, and it's great to pull out of the freezer on nights when you need some comfort food. I reheated it in the microwave for about 2 minutes, but if you don’t have a microwave I would reheat in the oven in a small glass dish covered with foil.

Recipe inspired by Baked Spaghetti at Budget Bytes.

Nutrition Information

Yield

8

Serving Size

1
Amount Per Serving Calories 597Total Fat 38gSaturated Fat 17gTrans Fat 0gUnsaturated Fat 21.6gCholesterol 165mgSodium 1034mgCarbohydrates 35.5gFiber 13.6gSugar 5gProtein 38.5g

Nutrition information is automatically calculated by the Recipe Plug-In I am using. I am not a nutritionist and cannot guarantee 100% accuracy, since many variables affect those calculations.

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© Kalyn Denny

Category: Casseroles

Low-Carb Diet / Low-Glycemic Diet / South Beach Diet Suggestions: 
This Baked Spaghetti Casserole can be approved for low-carb or Keto diets, depending on which pasta option you use; see above for a comparison of the carbs. This recipe would probably be too high in fat for the Original South Beach Diet, but if you made it with whole grain spaghetti I don’t think it would be that huge of a splurge for an occasional treat.

Find More Recipes Like This One:
Use Casserole Recipes to find more family-friendly casseroles for dinner! Use the Diet Type Index photo index pages to find more recipes suitable for a specific eating plan. You might also like to follow Kalyn’s Kitchen on Pinterest, on Facebook, on Instagram, on TikTok, or on YouTube to see all the good recipes I’m sharing there.

Historical Notes for this Recipe:
This Baked Spaghetti Casserole recipe made with whole wheat spaghetti was posted in 2012. The recipe was updated to include lower-carb and low-carb versions in 2021 and was updated again with more information and the preference for using Fiber Gourmet Light Spaghetti in 2025.