If you like simple, cozy pasta dinners, these Herb and Zucchini Stuffed Jumbo Shells might become a regular in your kitchen. It is a straightforward recipe: tender jumbo shells, a creamy ricotta filling with herbs and zucchini, and a light blanket of marinara sauce to bring it all together. Nothing fancy, nothing over the top, just a reliable, comforting meal with enough flavor to keep everyone at the table happy.

The Herb and Zucchini Stuffed Jumbo Shells are especially handy on those evenings when you want something homemade but do not feel like juggling three pans and a long ingredient list. The filling mixes up in one bowl, the shells bake in one dish, and you get a complete, satisfying vegetarian dinner with minimal fuss.

Ingredients for this Herb and Zucchini Stuffed Jumbo Shells

Here is exactly what you will need to make these Herb and Zucchini Stuffed Jumbo Shells. Keeping it clear and simple helps when you are glancing back and forth between the counter and your screen.

18 pieces jumbo pasta shells, uncooked
1 tablespoon olive oil
1 cup finely diced zucchini
1 cup whole-milk ricotta cheese
1/2 cup shredded mozzarella cheese
1/4 cup grated Parmesan cheese
2 tablespoons chopped fresh parsley
1 tablespoon chopped fresh basil
1 teaspoon dried Italian seasoning
1 clove garlic, minced
1/2 teaspoon salt
1/4 teaspoon black pepper
1 1/2 cups marinara sauce
2 tablespoons water

If you lay everything out before you start, the recipe flows much more easily. Think of it as your small kitchen prep station: a pot for boiling the jumbo pasta shells, a skillet for the zucchini, a bowl for the ricotta and herbs, and a baking dish waiting for those stuffed shells.

Instructions

Take your time with the steps the first round. Once you have made Herb and Zucchini Stuffed Jumbo Shells once, it becomes almost automatic.

Preheat the oven. Set your oven to 375°F (190°C). This way, it is ready by the time your shells are filled and the baking dish is assembled.
Cook the jumbo pasta shells. Bring a large pot of salted water to a boil and cook the jumbo pasta shells according to the package directions until just al dente. You want them tender but not falling apart, so they hold the filling well. Drain the shells and let them cool slightly on a tray or plate so you can handle them without burning your fingers.
Sauté the zucchini. While the shells cook, heat the olive oil in a skillet over medium heat. Add the finely diced zucchini and cook, stirring occasionally, for about 4 to 5 minutes, just until it is tender and a bit softened. You are not looking for deep browning here, just taking away the raw edge. Remove the skillet from the heat and let the zucchini cool for a few minutes so it does not melt the cheese mixture later.
Make the ricotta and herb filling. In a mixing bowl, combine the ricotta cheese, shredded mozzarella cheese, grated Parmesan cheese, chopped fresh parsley, chopped fresh basil, dried Italian seasoning, minced garlic, salt, and black pepper. Stir until everything is evenly mixed and the herbs are well distributed. It should look creamy and speckled with green.
Add the zucchini to the filling. Spoon the cooled zucchini into the bowl with the ricotta and herb mixture. Stir again until the zucchini is evenly folded through the filling. This is the heart of your Herb and Zucchini Stuffed Jumbo Shells, so take a moment to make sure it is nicely combined.
Prepare the baking dish. Spread 1 cup of marinara sauce over the bottom of your baking dish. This thin layer keeps the jumbo pasta shells from sticking and helps them cook gently in the oven.
Fill the jumbo shells. Take one cooled jumbo shell in your hand and gently open it. Add a generous spoonful of the herb and zucchini ricotta filling into the center, then place the stuffed shell in the baking dish, open side up. Repeat with the remaining shells until you have used up the filling and arranged all the stuffed shells in a single layer.
Top with sauce and water. Spoon the remaining 1/2 cup of marinara sauce over the tops of the stuffed shells. It does not need to cover every bit; just a light coating is enough. Drizzle the water around the edges of the baking dish. This small splash of water helps create steam and keeps the Herb and Zucchini Stuffed Jumbo Shells from drying out as they bake.
Bake covered. Cover the baking dish tightly with foil and place it in the preheated oven. Bake for 20 minutes so the filling can heat through and the shells can relax into the sauce.
Finish baking uncovered. Carefully remove the foil and return the dish to the oven. Bake for another 10 to 15 minutes, until the sauce is gently bubbling around the edges and the shells look tender and warmed through.
Rest and serve. Take the Herb and Zucchini Stuffed Jumbo Shells out of the oven and let them rest for about 5 minutes. This short pause helps the filling set slightly, so it stays inside the shells when you serve. Then plate up and enjoy while everything is still warm and cozy.

Cook and Prep Times

Prep time: 25 minutes
Cook time: 35 minutes
Total time: About 1 hour
Servings: 4 portions of Herb and Zucchini Stuffed Jumbo Shells

Nutritional information

Here is an approximate nutritional breakdown for one serving of Herb and Zucchini Stuffed Jumbo Shells, assuming the recipe makes four servings:

Calories: 420 kcal
Carbohydrates: 49g
Protein: 19g
Fat: 16g
Saturated fat: 7g
Sodium: 670mg
Fiber: 4g
Sugar: 7g

These numbers are estimates, but they give you a general idea of what you are getting on your plate: a balanced mix of carbs from the jumbo pasta shells, protein from the ricotta and other cheeses, and a bit of fat to keep things satisfying.

Frequently asked questions

Can I prepare Herb and Zucchini Stuffed Jumbo Shells in advance?

Yes, you can. One easy approach is to cook the jumbo pasta shells, make the ricotta, herb, and zucchini filling, and stuff the shells ahead of time. Arrange the stuffed shells in the baking dish with the 1 cup of marinara sauce on the bottom, spoon the remaining 1/2 cup of marinara sauce over the top, drizzle the 2 tablespoons of water around the edges, then cover the dish and refrigerate for a few hours or up to a day. When you are ready to bake, let the dish sit at room temperature for a short while and then follow the same baking times, adding a few extra minutes if the shells are very cold. It is a nice way to get a head start on dinner.

How do I keep the shells from tearing when I fill them?

The key is to cook the jumbo pasta shells just until al dente and then let them cool slightly before handling. If they are too soft, they tear more easily when you add the herb and zucchini ricotta filling. After draining, you can lay the shells in a single layer on a tray so they do not stick together. When filling, use a small spoon and support the shell with your hand, opening it gently instead of forcing it. A little patience here makes the Herb and Zucchini Stuffed Jumbo Shells look neat on the plate.

How should I store and reheat leftovers?

If you have leftover Herb and Zucchini Stuffed Jumbo Shells, let them cool, then cover the baking dish or transfer the shells and sauce to an airtight container. Store them in the refrigerator and aim to eat them within two to three days. To reheat, place the shells back in an oven-safe dish, cover with foil, and warm them in a low oven until heated through, or reheat individual portions gently in the microwave. If they look a little dry, you can spoon a bit of the marinara sauce from the dish over the top before reheating to keep everything moist and pleasant.