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Dinner / Sausage Zucchini Casserole: A Delicious and Easy Recipe

Sausage Zucchini Casserole: A Delicious and Easy Recipe

July 13, 2025 by EvelynDinner

Sausage zucchini casserole: just the name conjures up images of warm, comforting goodness, doesn’t it? Imagine sinking your fork into layers of savory sausage, tender zucchini, and melted cheese – a symphony of flavors that will have your family begging for seconds. This isn’t just a recipe; it’s a hug in a dish!

Casseroles, in general, have a long and storied history, often born out of necessity as a way to use up leftover ingredients and feed a crowd. While the exact origins of a sausage zucchini casserole are difficult to pinpoint, its essence lies in that same resourceful spirit. It’s a celebration of simple, wholesome ingredients transformed into something truly special.

What makes this particular casserole so beloved? Well, for starters, it’s incredibly easy to make. Perfect for busy weeknights, it requires minimal prep time and bakes to golden perfection in under an hour. But beyond its convenience, the taste is simply irresistible. The savory sausage complements the mild zucchini beautifully, creating a balanced flavor profile that appeals to both kids and adults. The creamy, cheesy topping adds a touch of indulgence, making each bite a truly satisfying experience. Plus, it’s a fantastic way to sneak in some extra veggies! So, gather your ingredients, preheat your oven, and let’s create a sausage zucchini casserole that will become a family favorite for years to come!

Sausage zucchini casserole this Recipe

Ingredients:

  • 1 pound Italian sausage, removed from casings
  • 1 large onion, chopped
  • 2 cloves garlic, minced
  • 2 medium zucchini, diced
  • 1 red bell pepper, diced
  • 1 (28 ounce) can crushed tomatoes
  • 1 (15 ounce) can tomato sauce
  • 1 teaspoon dried oregano
  • 1/2 teaspoon dried basil
  • 1/4 teaspoon red pepper flakes (optional)
  • Salt and pepper to taste
  • 15 lasagna noodles
  • 2 cups ricotta cheese
  • 1/2 cup grated Parmesan cheese
  • 1 egg, lightly beaten
  • 2 cups shredded mozzarella cheese
  • 2 tablespoons olive oil
  • Fresh basil leaves, for garnish (optional)

Preparing the Sausage and Vegetable Base

  1. Get started by browning the sausage. In a large skillet or Dutch oven, heat the olive oil over medium heat. Add the Italian sausage and cook, breaking it up with a spoon, until it’s browned and cooked through. This usually takes about 7-10 minutes. Make sure there are no pink bits left!
  2. Add the aromatics. Once the sausage is cooked, remove it from the skillet and set it aside. Leave any rendered fat in the skillet – this will add tons of flavor to the vegetables. Add the chopped onion to the skillet and cook until softened, about 5 minutes. Then, add the minced garlic and cook for another minute until fragrant. Be careful not to burn the garlic!
  3. Sauté the vegetables. Add the diced zucchini and red bell pepper to the skillet. Cook, stirring occasionally, until the vegetables are tender-crisp, about 8-10 minutes. You want them to soften slightly but still retain some of their texture.
  4. Simmer the sauce. Pour in the crushed tomatoes and tomato sauce. Stir in the dried oregano, dried basil, and red pepper flakes (if using). Season with salt and pepper to taste. Bring the sauce to a simmer, then reduce the heat and let it simmer for at least 15 minutes, or up to 30 minutes, to allow the flavors to meld together. The longer it simmers, the richer the flavor will be! Stir occasionally to prevent sticking.
  5. Combine sausage and sauce. Return the cooked sausage to the skillet with the tomato sauce and vegetables. Stir to combine and set aside. This is the heart of our casserole, so make sure everything is well mixed.

Preparing the Ricotta Cheese Mixture

  1. Combine ricotta, Parmesan, and egg. In a medium bowl, combine the ricotta cheese, grated Parmesan cheese, and lightly beaten egg. Mix well until everything is evenly incorporated. The egg helps to bind the ricotta mixture together and adds richness.
  2. Season the ricotta mixture. Season the ricotta mixture with a pinch of salt and pepper to taste. Don’t over-salt, as the Parmesan cheese is already quite salty. Set aside.

Cooking the Lasagna Noodles

  1. Cook the lasagna noodles. While the sauce is simmering, cook the lasagna noodles according to the package directions. I usually prefer to cook them al dente, as they will continue to cook in the oven. Be careful not to overcook them, or they will become mushy.
  2. Prevent sticking. To prevent the noodles from sticking together, add a tablespoon of olive oil to the cooking water. You can also rinse the cooked noodles with cold water to stop the cooking process and remove excess starch.
  3. Lay flat to dry. Once the noodles are cooked, lay them flat on a clean kitchen towel or parchment paper to dry slightly. This will make them easier to handle when assembling the casserole.

Assembling the Sausage Zucchini Casserole

  1. Preheat the oven. Preheat your oven to 375°F (190°C).
  2. Prepare the baking dish. Lightly grease a 9×13 inch baking dish with cooking spray or olive oil. This will prevent the casserole from sticking to the bottom of the dish.
  3. Layer the ingredients. Spread a thin layer of the sausage and vegetable sauce on the bottom of the prepared baking dish. This will help to keep the noodles from sticking and add flavor to the bottom layer.
  4. Add the first layer of noodles. Arrange a layer of lasagna noodles over the sauce, overlapping them slightly to cover the entire bottom of the dish. You may need to break some of the noodles to fit.
  5. Spread ricotta mixture. Spread half of the ricotta cheese mixture evenly over the noodles.
  6. Sprinkle mozzarella cheese. Sprinkle one-third of the shredded mozzarella cheese over the ricotta cheese mixture.
  7. Repeat layers. Spoon another layer of the sausage and vegetable sauce over the mozzarella cheese. Top with another layer of lasagna noodles, overlapping them as before. Spread the remaining ricotta cheese mixture over the noodles, and sprinkle with another one-third of the shredded mozzarella cheese.
  8. Final layer. Top with the remaining sausage and vegetable sauce. Arrange the final layer of lasagna noodles over the sauce, overlapping them to cover the entire dish. Sprinkle with the remaining shredded mozzarella cheese and the grated Parmesan cheese.

Baking the Casserole

  1. Cover and bake. Cover the baking dish with aluminum foil. This will help to prevent the top from browning too quickly and ensure that the casserole is heated through.
  2. Bake for 30 minutes. Bake in the preheated oven for 30 minutes.
  3. Uncover and bake. Remove the aluminum foil and bake for another 15-20 minutes, or until the cheese is melted and bubbly and the top is golden brown. Keep a close eye on it to prevent burning.
  4. Let it rest. Remove the casserole from the oven and let it rest for at least 10-15 minutes before cutting and serving. This will allow the casserole to set up slightly and make it easier to slice.
  5. Garnish and serve. Garnish with fresh basil leaves, if desired. Serve hot and enjoy! This casserole is even better the next day, so don’t hesitate to make it ahead of time.

Sausage zucchini casserole

Conclusion:

This Sausage Zucchini Casserole isn’t just another recipe; it’s a flavor explosion waiting to happen in your kitchen! From the savory sausage to the tender zucchini, all nestled in a creamy, cheesy embrace, this dish is a guaranteed crowd-pleaser. I’ve made it countless times, and it’s always a hit, even with the pickiest eaters. The beauty of this recipe lies in its simplicity and the incredible depth of flavor it delivers with minimal effort. It’s the perfect weeknight meal when you’re short on time but craving something comforting and delicious.

But why is this casserole a must-try? It’s more than just the taste; it’s the versatility. You can easily adapt it to your preferences and dietary needs. For a spicier kick, use Italian sausage with a little heat, or add a pinch of red pepper flakes to the mixture. If you’re watching your carbs, you can substitute cauliflower rice for some of the zucchini to lower the overall carbohydrate content. For a vegetarian option, simply omit the sausage and add more vegetables like bell peppers, mushrooms, or spinach. The possibilities are truly endless!

Serving Suggestions and Variations:

This Sausage Zucchini Casserole is fantastic on its own, but it also pairs well with a variety of sides. A simple green salad with a light vinaigrette provides a refreshing contrast to the richness of the casserole. Crusty bread, perfect for soaking up all those delicious juices, is another excellent choice. You could also serve it with a side of roasted vegetables like broccoli or asparagus for a complete and balanced meal.

Looking for variations? Consider adding a layer of ricotta cheese between the zucchini and sausage mixture for an extra creamy texture. Top it with breadcrumbs before baking for a crispy, golden crust. You can even use different types of cheese, such as mozzarella, provolone, or Monterey Jack, to create unique flavor profiles. Don’t be afraid to experiment and make it your own!

I truly believe that this Sausage Zucchini Casserole will become a staple in your recipe repertoire. It’s easy to make, incredibly delicious, and endlessly adaptable. It’s the kind of dish that brings people together and creates lasting memories.

So, what are you waiting for? Grab your ingredients, preheat your oven, and get ready to experience the magic of this incredible casserole. I’m confident that you’ll love it as much as I do.

And now, the most important part: I want to hear about your experience! Did you try the recipe? Did you make any modifications? What did your family and friends think? Share your thoughts, photos, and stories in the comments below. I’m always eager to learn from your culinary adventures and see how you’ve made this recipe your own. Your feedback is invaluable and helps me continue to create and share recipes that you’ll love. Happy cooking, and I can’t wait to hear from you! Let me know if you have any questions, too! I’m here to help you succeed in the kitchen.


Sausage Zucchini Casserole: A Delicious and Easy Recipe

Hearty sausage zucchini casserole with lasagna noodles, ricotta, and rich tomato sauce.

Prep Time30 minutes
Cook Time60 minutes
Total Time90 minutes
Category: Dinner
Yield: 12 servings
Save This Recipe

Ingredients

  • 1 pound Italian sausage, removed from casings
  • 2 tablespoons olive oil
  • 1 large onion, chopped
  • 2 cloves garlic, minced
  • 2 medium zucchini, diced
  • 1 red bell pepper, diced
  • 1 (28 ounce) can crushed tomatoes
  • 1 (15 ounce) can tomato sauce
  • 1 teaspoon dried oregano
  • 1/2 teaspoon dried basil
  • 1/4 teaspoon red pepper flakes (optional)
  • Salt and pepper to taste
  • 15 lasagna noodles
  • 2 cups ricotta cheese
  • 1/2 cup grated Parmesan cheese
  • 1 egg, lightly beaten
  • 2 cups shredded mozzarella cheese
  • Fresh basil leaves, for garnish (optional)

Instructions

  1. Heat olive oil in a large skillet or Dutch oven over medium heat. Add sausage and cook, breaking it up, until browned (7-10 minutes). Remove sausage and set aside, leaving rendered fat in the skillet.
  2. Add chopped onion to the skillet and cook until softened (5 minutes). Add minced garlic and cook until fragrant (1 minute).
  3. Add diced zucchini and red bell pepper to the skillet. Cook, stirring occasionally, until tender-crisp (8-10 minutes).
  4. Pour in crushed tomatoes and tomato sauce. Stir in oregano, basil, and red pepper flakes (if using). Season with salt and pepper. Bring to a simmer, then reduce heat and simmer for 15-30 minutes, stirring occasionally.
  5. Return cooked sausage to the skillet with the tomato sauce and vegetables. Stir to combine and set aside.
  6. In a medium bowl, combine ricotta cheese, grated Parmesan cheese, and lightly beaten egg. Mix well and season with a pinch of salt and pepper. Set aside.
  7. Cook lasagna noodles according to package directions until al dente. Add a tablespoon of olive oil to the cooking water to prevent sticking. Rinse with cold water and lay flat on a clean kitchen towel or parchment paper to dry slightly.
  8. Preheat oven to 375°F (190°C).
  9. Lightly grease a 9×13 inch baking dish with cooking spray or olive oil.
  10. Spread a thin layer of the sausage and vegetable sauce on the bottom of the prepared baking dish.
  11. Arrange a layer of lasagna noodles over the sauce, overlapping them slightly to cover the entire bottom of the dish. You may need to break some of the noodles to fit.
  12. Spread half of the ricotta cheese mixture evenly over the noodles.
  13. Sprinkle one-third of the shredded mozzarella cheese over the ricotta cheese mixture.
  14. Spoon another layer of the sausage and vegetable sauce over the mozzarella cheese. Top with another layer of lasagna noodles, overlapping them as before. Spread the remaining ricotta cheese mixture over the noodles, and sprinkle with another one-third of the shredded mozzarella cheese.
  15. Top with the remaining sausage and vegetable sauce. Arrange the final layer of lasagna noodles over the sauce, overlapping them to cover the entire dish. Sprinkle with the remaining shredded mozzarella cheese and the grated Parmesan cheese.
  16. Cover the baking dish with aluminum foil. Bake in the preheated oven for 30 minutes.
  17. Remove the aluminum foil and bake for another 15-20 minutes, or until the cheese is melted and bubbly and the top is golden brown.
  18. Remove the casserole from the oven and let it rest for at least 10-15 minutes before cutting and serving.
  19. Garnish with fresh basil leaves, if desired. Serve hot.

Notes

  • Simmering the sauce longer will result in a richer flavor.
  • Cook lasagna noodles al dente to prevent mushiness.
  • Letting the casserole rest before cutting allows it to set up and makes slicing easier.
  • This casserole is even better the next day.

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