Stuffed Manicotti
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If the idea of boiling manicotti, stuffing it without breaking it, and keeping your sanity intact sounds questionable, this recipe is for you. These Spinach Ricotta Stuffed Manicotti go straight from the box to the oven, no boiling required, and come out perfectly tender every time.

My Spinach Ricotta Stuffed Manicotti
This is actually the dish I made over 20 years ago to impress my mother in law in Romania. No big deal. Just casually trying to win approval from a woman who knows her way around a kitchen and was absolutely going to notice if I messed this up. So yes, I chose something that looked impressive but had my back the entire time.
The manicotti cook right in the sauce, which means fewer steps and fewer opportunities for disaster. The filling is classic and comforting. Creamy ricotta, spinach, garlic, a pinch of nutmeg, and lots of cheese, all baked under marinara until bubbly and irresistible. It’s the kind of dinner that makes people think you worked harder than you did, which, frankly, is a life skill.

Why We Love This Stuffed Manicotti
- No boiling, no broken pasta, no bad mood: You stuff the manicotti straight from the box and let the sauce do the work. Fewer steps, fewer things to mess up, and zero pots of boiling water to babysit.
- Impressive without being stressful: This is one of those baked pasta dishes that looks like a big deal when it hits the table, but the prep is very reasonable. Perfect for company, holidays, or impressing someone important.
- Classic, comforting filling: Ricotta, spinach, garlic, a hint of nutmeg, and plenty of cheese. It’s familiar in the best way, not fussy, not trendy, just really good.
- Make-ahead friendly: You can assemble the whole dish ahead of time and bake it later. Which means less chaos when you actually want to enjoy dinner with people.
- Vegetarian comfort food that satisfies: Even the meat lovers at the table won’t feel shortchanged. It’s hearty, cheesy, and absolutely counts as a real meal.

In a large bowl, mix together the ricotta, spinach, onion, egg, garlic, Italian seasoning, nutmeg, salt, and pepper. Stir in half of the mozzarella and half of the Parmesan. You want everything well combined and nicely seasoned.
Transfer the filling to a piping bag or a zip-top bag with the corner snipped off. Stuff the manicotti shells straight from the box. No boiling, no soaking, no stress.

Spread about 1 cup of marinara sauce in the bottom of a 9×13-inch baking dish. This keeps the manicotti from sticking and starts the cooking process right away.
Place the manicotti in a single layer in the dish. Pour the remaining marinara over the manicotti, making sure they’re fully covered. This part matters. Top with the remaining mozzarella and Parmesan.
Cover the dish tightly with foil and bake until the pasta is tender, about 1 hour. Remove the foil and bake for another 15–20 minutes, until bubbly and lightly golden on top. Let it rest for a few minutes, then garnish with basil or extra Parmesan if you’re feeling generous. Or just grab a fork and go.

Serve Stuffed Manicotti With
Stuffed manicotti is rich, cheesy, and very much the main event, so I like to keep the sides simple and fresh. Something crunchy, something green, and maybe a little extra bread for good measure. Here’s how I like to serve mine:
Easy Garlic Bread
Easy Tossed Salad
Mini Caprese Salad Bites
Skillet Green Beans
Frequently Asked Questions
Do I really not have to boil the manicotti first?
Nope. Stuff them straight from the box. As long as the manicotti are fully covered in sauce and baked covered with foil, they’ll cook perfectly in the oven.
What if my manicotti break while stuffing them?
A cracked shell is not the end of the world. Nestle it into the dish, cover it well with sauce, and keep going. Once it’s baked and cheesy, no one will ever know.
Can I make this ahead of time?
Yes, and it’s great for that. Assemble the entire dish, cover it tightly, and refrigerate for up to 24 hours. Bake straight from the fridge, adding about 10 extra minutes to the covered baking time.
Can I use fresh spinach instead of frozen?
Absolutely. Sauté it first and squeeze out as much moisture as possible. Spinach holds a surprising amount of water, and too much of it will loosen the filling.
Can I add meat to this?
You can. Cooked Italian sausage or ground beef works well mixed into the filling or layered into the sauce. Just make sure it’s fully cooked before assembling.
How do I store leftovers?
Cover the dish tightly or transfer leftovers to an airtight container. They’ll keep in the fridge for 3–5 days and reheat beautifully.
Can I freeze stuffed manicotti?
Yes. You can freeze it baked or unbaked. Wrap it well and freeze for up to 3 months. Thaw overnight in the fridge before baking or reheating.

Try These Pasta Recipes Next
- Easy Beef Lasagna
- Baked Spaghetti Casserole
- Spaghetti Bolognese
- Buffalo Chicken Lasagna
- Five Cheese Ziti Al Forno
- Cheese and Spinach Stuffed Shells
- Skillet Lasagna
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Spinach Ricotta Stuffed Manicotti
Video
Ingredients
Filling
- 15 ounce ricotta cheese ((1 container))
- 10 ounce frozen spinach (chopped, thawed and squeezed dried (1 10 oz package))
- 1 medium onion (chopped)
- 1 large egg
- 2 cloves garlic (minced)
- 1 teaspoon Italian seasoning
- ⅛ teaspoon nutmeg (freshly grated)
- ½ teaspoon salt (or to taste)
- ½ teaspoon pepper (or to taste)
Stuffed Manicotti
- 2 cups mozzarella cheese (shredded, divided)
- 1 cup Parmesan cheese (grated, divided)
- 8 ounce manicotti shells (uncooked)
- 4 cups marinara sauce
Before You Begin! If you make this, please leave a review and rating letting us know how you liked this recipe! This helps our business thrive & continue providing free recipes.
Instructions
- Preheat the oven to 350℉.
- In a large bowl, combine the ricotta, spinach, onion, egg, garlic, Italian seasoning, nutmeg, salt, pepper, 1 cup of the mozzarella cheese and ½ cup of the Parmesan cheese.
- Spread about 1 cup of the marinara sauce in the bottom of a 9×13-inch casserole dish.
- Transfer the filling to a piping bag or plastic ziploc bag, cut off a little from one end, this will make it easier for stuffing the shells.
- Stuff each manicotti shell with ricotta mixture and arrange in a single layer in the dish. Cover with remaining sauce. There should be enough sauce to fully cover the manicotti.
- Top with remaining 1 cup of mozzarella cheese and ½ cup of Parmesan cheese.
- Transfer the dish to the preheated oven and bake for 1 hour covered, then 15-20 minutes uncovered, or until the noodles are soft.
- Serve garnished with basil if preferred and more grated Parmesan cheese.
Equipment
Notes
- Don’t boil the manicotti. Stuff them straight from the box and let the sauce do the work.
- Make sure the manicotti are fully covered in sauce before baking so they cook evenly.
- If your ricotta is watery, drain it briefly for a thicker, creamier filling.
- This dish can be assembled up to 24 hours ahead and baked when ready.
- Leftovers reheat well in the oven or microwave and make an excellent next-day lunch.
Nutrition Information
Notice: Nutrition is auto-calculated for your convenience. Where relevant, we recommend using your own nutrition calculations.

