Tasty Baked Mostaccioli with Cottage Cheese

I’ll admit, I used to think baked pasta dishes were just lasagna with different noodles. Then one night I had leftover mostaccioli and some cottage cheese in the fridge that needed using up, and I figured, why not throw them together?

Turns out, baked mostaccioli with cottage cheese is its own thing entirely. The cottage cheese mixed with eggs creates this creamy layer that’s lighter than ricotta but just as good. It’s not quite as involved as lasagna—no layering every single noodle perfectly—but you still get that bubbly, cheesy, comfort food situation everyone fights over at the dinner table. My kids started asking for it by name, which is how I knew I’d stumbled onto something worth keeping around.

What Kind of Cottage Cheese Should I Use?

For this baked mostaccioli, you can use any type of cottage cheese you have on hand – small curd, large curd, or even whipped cottage cheese will all work great. Full-fat cottage cheese will give you the creamiest, richest result, but low-fat or fat-free versions work just fine if that’s what you prefer or have in your fridge. Some people like to give their cottage cheese a quick stir or even blend it slightly before mixing it with the eggs to create a smoother texture throughout the dish, but honestly, leaving it as-is adds nice little pockets of creaminess that I really enjoy. If you’re looking to save a few bucks, store-brand cottage cheese works just as well as the name brands for this recipe.

Options for Substitutions

This baked pasta dish is pretty forgiving when it comes to swaps:

• Mostaccioli: If you can’t find mostaccioli, penne or ziti work perfectly since they’re similar tube-shaped pastas. Rigatoni is another good option, though it’s a bit larger.
• Italian sausage: Ground beef or ground turkey are easy swaps here. You can also use a mix of half sausage and half ground beef if you want to stretch the sausage further or tone down the flavor a bit.
• Cottage cheese: Ricotta cheese is the most common substitute and gives you that classic baked pasta texture. You can also use a mix of half cottage cheese and half ricotta if you have both on hand.
• Marinara sauce: Any tomato-based pasta sauce works here – try a basic tomato sauce, arrabbiata for some heat, or even vodka sauce for something different.
• Mozzarella: While fresh mozzarella can be used, stick with the shredded kind for better melting. In a pinch, you could use provolone or Italian blend cheese.
• Parsley: Fresh basil or Italian seasoning (about 1 teaspoon) can replace the parsley if that’s what you have in your kitchen.

Watch Out for These Mistakes While Baking

The biggest mistake people make with baked mostaccioli is overcooking the pasta during the initial boil – since it bakes for another 40 minutes in the oven, you want to undercook it by about 2 minutes so it doesn’t turn mushy.

Another common error is skipping the foil cover during the first 30 minutes of baking, which can dry out the top layer and leave you with crunchy, hard pasta around the edges instead of a creamy casserole.

Make sure your cottage cheese mixture is well-combined with no lumps of unmixed egg, and spread it evenly across the entire layer so every bite has that creamy texture.

Finally, let the casserole rest for 10-15 minutes after pulling it from the oven – cutting into it right away causes all the cheese and sauce to run out, making it hard to serve neat portions.

What to Serve With Baked Mostaccioli?

This baked mostaccioli is a hearty, filling dish that pairs perfectly with a simple side salad and some garlic bread for soaking up any extra sauce. I like to throw together a quick Caesar salad or just some mixed greens with Italian dressing and a sprinkle of Parmesan to keep things easy. If you want to add more veggies to the meal, roasted broccoli or sautéed green beans with garlic work really well alongside the rich, cheesy pasta. A glass of red wine doesn’t hurt either if you’re serving this for a dinner party or family gathering.

Storage Instructions

Store: Leftover baked mostaccioli keeps really well in the fridge for up to 4 days. Just cover it tightly with foil or transfer it to an airtight container once it’s cooled down. It actually tastes even better the next day when all the flavors have had time to meld together!

Freeze: This casserole is perfect for freezing! You can either freeze the whole thing before baking (just thaw overnight before cooking) or freeze leftovers after baking for up to 3 months. Wrap it well in plastic wrap and then foil to prevent freezer burn.

Reheat: To warm up your mostaccioli, cover it with foil and bake at 350°F for about 20-25 minutes until heated through. You can also microwave individual portions for 2-3 minutes, stirring halfway through. Add a splash of water or extra marinara if it seems a bit dry.

Estimated Nutrition

Estimated nutrition for the whole recipe (without optional ingredients):

• Calories: 3500-3800
• Protein: 170-190 g
• Fat: 160-180 g
• Carbohydrates: 295-320 g

Ingredients

For the pasta and meat:

• 1 lb mostaccioli (I always use Barilla for the best al dente texture)
• 1 lb Italian sausage
• 30 oz marinara sauce (I prefer Rao’s Homemade for a rich, authentic flavor)
• 1/4 tsp red pepper flakes

For the filling:

• 1 1/2 cups cottage cheese
• 3 large eggs (room temperature, about 70°F, ensures even blending)
• 1/2 cup mozzarella
• 1/3 cup Parmesan
• 2 tbsp fresh parsley, chopped
• 3/4 tsp salt
• 3/4 tsp black pepper

For the topping:

• 1 3/4 cups mozzarella (freshly shredded for better melting and stretch)
• 1/2 cup Parmesan

Step 1: Prepare the Oven and Mise en Place

• Baking dish

Preheat your oven to 350°F.

While it heats, gather all ingredients and measure them out—this ensures you won’t scramble during assembly.

Grease a 9×13 inch baking dish with a light coating of oil or cooking spray and set aside.

Having everything prepped and ready will make the next steps flow smoothly without any rushed moments.

Step 2: Cook the Sausage and Pasta in Parallel

• 1 lb Italian sausage
• 1 lb mostaccioli

In a large skillet over medium-high heat, brown the Italian sausage, breaking it into small crumbles as it cooks (about 5-7 minutes until no pink remains).

Simultaneously, bring a large pot of salted water to a boil and cook the mostaccioli for about 9 minutes—you want it slightly underdone since it will continue cooking in the oven.

The pasta should have a slight firmness to it, not soft.

Drain the pasta and set aside.

Step 3: Build the Sauce Base

• 30 oz marinara sauce
• 1/4 tsp red pepper flakes
• cooked Italian sausage from Step 2

Add the marinara sauce and red pepper flakes to the cooked sausage in the skillet, stirring well to combine.

Reduce the heat to low and let it simmer gently for 2-3 minutes so the flavors meld together.

I like to taste the sauce at this point and adjust the seasoning if needed—it should be flavorful and balanced.

Step 4: Prepare the Cottage Cheese Filling

• 1 1/2 cups cottage cheese
• 3 large eggs
• 1/2 cup mozzarella
• 1/3 cup Parmesan
• 2 tbsp fresh parsley, chopped
• 3/4 tsp salt
• 3/4 tsp black pepper

In a medium bowl, combine the cottage cheese, room-temperature eggs, 1/2 cup mozzarella, 1/3 cup Parmesan, fresh parsley, salt, and black pepper.

Mix until everything is evenly incorporated and smooth.

The room-temperature eggs blend much more easily with the cottage cheese, creating a creamier, more uniform filling without any lumps.

Step 5: Layer and Assemble the Bake

• sausage-marinara sauce from Step 3
• cooked mostaccioli from Step 2
• cottage cheese filling from Step 4
• 1 3/4 cups mozzarella
• 1/2 cup Parmesan

Spread half of the sausage-marinara sauce from Step 3 evenly across the bottom of your prepared baking dish.

Layer half of the cooked pasta from Step 2 over the sauce, then spread the entire cottage cheese mixture from Step 4 in an even layer.

Top with the remaining pasta, then finish with the rest of the sauce from Step 3.

Sprinkle the 1 3/4 cups of freshly shredded mozzarella and 1/2 cup Parmesan evenly over the top.

Step 6: Bake Covered, Then Uncover to Finish

• assembled casserole from Step 5

Cover the baking dish tightly with aluminum foil and place it in your preheated 350°F oven.

Bake for 30 minutes, then carefully remove the foil and bake uncovered for an additional 10 minutes, until the cheese topping is melted, bubbly, and lightly golden at the edges.

The foil traps steam during the initial bake, keeping everything moist, while uncovering it at the end allows the cheese to brown beautifully.

Step 7: Rest and Serve

Remove the mostaccioli from the oven and let it rest for 5-10 minutes before serving.

This resting period allows the casserole to set slightly, making it easier to cut clean portions without the layers falling apart.

Tasty Baked Mostaccioli with Cottage Cheese

Delicious Tasty Baked Mostaccioli with Cottage Cheese recipe with step-by-step instructions.

Print Recipe Pin Recipe

Prep Time 25 minutes mins

Cook Time 45 minutes mins

Total Time 1 hour hr 10 minutes mins

Servings: 8 servings

Calories: 3650

Ingredients Method

Ingredients

  

For the pasta and meat::

• 1 lb mostaccioli (I always use Barilla for the best al dente texture)
• 1 lb Italian sausage
• 30 oz marinara sauce (I prefer Rao’s Homemade for a rich, authentic flavor)
• 1/4 tsp red pepper flakes

For the filling::

• 1 1/2 cups cottage cheese
• 3 large eggs (room temperature, about 70°F, ensures even blending)
• 1/2 cup mozzarella
• 1/3 cup Parmesan
• 2 tbsp fresh parsley, chopped
• 3/4 tsp salt
• 3/4 tsp black pepper

For the topping::

• 1 3/4 cups mozzarella (freshly shredded for better melting and stretch)
• 1/2 cup Parmesan

Method

 

1. Preheat your oven to 350°F. While it heats, gather all ingredients and measure them out—this ensures you won't scramble during assembly. Grease a 9x13 inch baking dish with a light coating of oil or cooking spray and set aside. Having everything prepped and ready will make the next steps flow smoothly without any rushed moments.
2. In a large skillet over medium-high heat, brown the Italian sausage, breaking it into small crumbles as it cooks (about 5-7 minutes until no pink remains). Simultaneously, bring a large pot of salted water to a boil and cook the mostaccioli for about 9 minutes—you want it slightly underdone since it will continue cooking in the oven. The pasta should have a slight firmness to it, not soft. Drain the pasta and set aside.
3. Add the marinara sauce and red pepper flakes to the cooked sausage in the skillet, stirring well to combine. Reduce the heat to low and let it simmer gently for 2-3 minutes so the flavors meld together. I like to taste the sauce at this point and adjust the seasoning if needed—it should be flavorful and balanced.
4. In a medium bowl, combine the cottage cheese, room-temperature eggs, 1/2 cup mozzarella, 1/3 cup Parmesan, fresh parsley, salt, and black pepper. Mix until everything is evenly incorporated and smooth. The room-temperature eggs blend much more easily with the cottage cheese, creating a creamier, more uniform filling without any lumps.
5. Spread half of the sausage-marinara sauce from Step 3 evenly across the bottom of your prepared baking dish. Layer half of the cooked pasta from Step 2 over the sauce, then spread the entire cottage cheese mixture from Step 4 in an even layer. Top with the remaining pasta, then finish with the rest of the sauce from Step 3. Sprinkle the 1 3/4 cups of freshly shredded mozzarella and 1/2 cup Parmesan evenly over the top.
6. Cover the baking dish tightly with aluminum foil and place it in your preheated 350°F oven. Bake for 30 minutes, then carefully remove the foil and bake uncovered for an additional 10 minutes, until the cheese topping is melted, bubbly, and lightly golden at the edges. The foil traps steam during the initial bake, keeping everything moist, while uncovering it at the end allows the cheese to brown beautifully.
7. Remove the mostaccioli from the oven and let it rest for 5-10 minutes before serving. This resting period allows the casserole to set slightly, making it easier to cut clean portions without the layers falling apart.