Let’s be honest—some days, you need a dinner that feels like a warm hug. Not those fancy, intimidating recipes that require equipment you don’t own and ingredients you can’t pronounce. No, you need something reliable, comforting, and satisfying that still makes you feel like you’ve got your life together. Enter baked penne with sausage: the pasta casserole that somehow manages to be both impressively delicious and embarrassingly easy.
Why This Recipe is Awesome

This baked penne with sausage isn’t just another pasta dish—it’s what I call “back-pocket cooking.” It’s the recipe you can always count on, whether you’re feeding picky kids, impressing dinner guests, or just trying to make Monday a little less Monday-ish.
The magic happens in the oven, where the pasta soaks up all that savory sauce, the cheese gets bubbly and golden, and the sausage flavor infuses every bite. It creates those coveted crispy edges and corners that everyone fights over (don’t pretend you don’t know what I’m talking about).
Plus, this recipe has that magical quality where it actually tastes better the next day. Leftovers that improve with time? That’s basically meal prep sorcery. Make it once, eat like royalty multiple times. Your future self will thank you when lunchtime rolls around tomorrow and you’re not stuck with a sad desk salad or overpriced takeout.
And let’s not overlook the versatility factor. This dish adapts to what you have on hand—different pasta shapes, cheese varieties, or even adding vegetables for the illusion of nutritional virtue. It’s like the culinary equivalent of that friend who gets along with everyone and makes any situation better.

Baked Penne with Sausage
Ingredients
- 1 pound penne pasta
- 1 pound Italian sausage casings removed (sweet or hot, your preference)
- 1 medium onion diced
- 3 cloves garlic minced
- 1 red bell pepper diced (optional)
- 1 teaspoon dried Italian seasoning
- ½ teaspoon red pepper flakes optional
- 2 jars 24 oz each marinara sauce (or homemade equivalent)
- 1 cup ricotta cheese
- 2 cups shredded mozzarella divided
- ½ cup grated Parmesan cheese divided
- ¼ cup fresh basil chopped (plus more for garnish)
- 2 tablespoons olive oil
- Salt and pepper to taste
Instructions
- Preheat your oven to 375°F (190°C).
- Bring a large pot of water to a boil. Season generously with salt—the water should taste like the sea. Add the penne and cook for 2 minutes LESS than the package directions. You want it very al dente (almost undercooked) as it will continue to cook in the oven. Drain the pasta.
- Meanwhile, heat a large skillet over medium-high heat. Add a tablespoon of olive oil and the Italian sausage, breaking it into smaller pieces as it cooks. Brown for about 5-7 minutes until no longer pink.
- Add the diced onion and bell pepper (if using) to the sausage. Cook for another 3-4 minutes until the vegetables have softened.
- Stir in the minced garlic, Italian seasoning, and red pepper flakes (if using). Cook for another 30 seconds until fragrant. Your kitchen should smell amazing right about now.
- Pour in the marinara sauce and bring to a simmer. Let it cook for about 5 minutes, stirring occasionally. Season with salt and pepper to taste, keeping in mind that the sausage and cheeses will add saltiness.
- In a large bowl, combine the ricotta cheese, 1 cup of mozzarella, ¼ cup of Parmesan, and the chopped basil. Mix well.
- Add the drained pasta to the cheese mixture and toss until the pasta is well coated.
- Combine the pasta/cheese mixture with the sausage and sauce. You can do this directly in the skillet if it's large enough, or in the pasta pot, or even in your baking dish if you're feeling rebellious.
- Transfer everything to your 9×13 inch baking dish. Top with the remaining 1 cup of mozzarella and ¼ cup of Parmesan.
- Drizzle the top with the remaining tablespoon of olive oil – this helps the cheese get that beautiful golden color.
- Cover with aluminum foil and bake for 20 minutes. Then remove the foil and bake for an additional 10 minutes until the cheese is bubbly and starting to brown in spots.
- Let it rest for 5 minutes before serving. This allows the casserole to set slightly and makes it easier to portion. Garnish with additional fresh basil.
Notes
- For a quicker version, use pre-cooked or smoked sausage, sliced into rounds.
- The pasta will absorb liquid as it bakes, so the sauce should be slightly thinner than you might normally prefer.
- For a creamier sauce, add ½ cup of heavy cream to the marinara.
- This casserole freezes beautifully. Let it cool completely, then portion and freeze for up to 3 months.
- To make ahead, assemble everything but don’t bake it. Cover and refrigerate for up to 24 hours, then let it sit at room temperature for 30 minutes before baking.
Calories & Nutritional Info
- Calories: Approximately 520 per serving
- Protein: 25g per serving
- Carbs: 50g per serving
- Fat: 24g per serving
- Fiber: 4g per serving
- Sodium: Moderate to high (varies based on sausage and sauce brands)
Common Mistakes to Avoid
- Overcooking the pasta before baking. Remember, it will continue to cook in the oven, so keep it very al dente initially.
- Not removing sausage casings. This can result in large, unwieldy pieces instead of the nice crumbles that distribute throughout the dish.
- Using cold ricotta straight from the refrigerator. Let it sit out for 15-20 minutes to soften, making it much easier to mix with the pasta.
- Skipping the resting time after baking. This step is crucial for allowing the casserole to set up properly.
- Using pre-shredded cheese. It contains anti-caking agents that prevent it from melting as smoothly. If possible, grate your own for the best texture and flavor.
Alternatives & Substitutions
- Pasta options: Any short pasta works great—rotini, ziti, or even farfalle. Whole grain pasta adds fiber, and gluten-free pasta can be substituted (though may need a touch more sauce).
- Meat variations: Turkey or chicken Italian sausage for a lighter version, ground beef for a more traditional flavor, or vegetarian sausage crumbles for a meatless option.
- Cheese alternatives: Provolone instead of mozzarella for sharper flavor, cottage cheese (drained) instead of ricotta for extra protein, or dairy-free alternatives for a lactose-free version.
- Veggie add-ins: Spinach, mushrooms, zucchini, or eggplant sautéed with the onions and peppers. This is a great way to sneak in extra vegetables.
- Sauce swaps: Vodka sauce for a creamier finish, arrabbiata for extra spice, or even a blush sauce (half marinara, half alfredo) for something different.
FAQs
Can I make this vegetarian?
Absolutely! Omit the sausage and add 2 cups of sautéed mushrooms and/or 1 cup of cooked lentils for texture and protein. You could also use plant-based Italian sausage substitutes, many of which have great flavor.
How do I reheat leftovers without drying them out?
For individual portions, microwave with a damp paper towel over the top, or add a splash of water before heating. For larger portions, cover with foil and reheat in a 325°F oven until warmed through, about 20 minutes.
Can I use jars of alfredo sauce instead of marinara?
Yes! This creates a totally different but equally delicious “white” version of the dish. You might want to reduce the ricotta if going this route, as it could become too rich.
What sides go well with this dish?
A simple green salad with a light vinaigrette provides nice contrast to the richness. Garlic bread is classic but somewhat redundant with the pasta. Roasted vegetables like broccoli or Brussels sprouts add nice textural contrast.
How can I make this spicier?
Use hot Italian sausage, increase the red pepper flakes, add diced jalapeños to the vegetable mix, or stir in calabrian chili paste to the sauce for a serious kick.
Final Thoughts
This baked penne with sausage is what I call “no-fail dinner magic”—it’s virtually impossible to mess up and guaranteed to please even the pickiest eaters. It strikes that perfect balance between comfort food and respectable adult dinner, making it appropriate for both Tuesday night with the kids and Saturday dinner with friends.
There’s something deeply satisfying about pulling a bubbling casserole of pasta from the oven, watching the cheese stretch as you scoop out servings, and seeing people go back for seconds (and maybe thirds—no judgment here). It’s the kind of cooking that makes you feel accomplished without requiring culinary school skills.
So the next time you’re standing in front of your pantry wondering what to make for dinner, remember this recipe. It’s reliable, adaptable, and delivers the kind of comfort we could all use a little more of. Plus, leftovers for lunch tomorrow? That’s what I call planning ahead.