Comforting, bubbling, and incredibly simple to pull together, this Meatless Baked Ziti is the kind of recipe you’ll make on a weeknight and immediately add to your regular rotation. Bright tomato sauce, tender ziti, creamy ricotta, and a golden mozzarella-parmesan top make every forkful satisfying. The flavors are cozy, familiar, and forgiving — perfect for serving to company or tucking into a leftover lunch the next day.

Why you’ll love this version

This Meatless Baked Ziti relies on pantry-friendly ingredients and a straightforward technique. A saute of onion and carrot gives the sauce a natural sweetness and texture without meat. The seasoning blend—Italian herbs, oregano, garlic and onion powders, fennel, and a pinch of sugar—creates depth. No fuss layering and a short bake produce a bubbling, golden-topped casserole that slices beautifully.

Ingredients

1 tablespoon olive oil
1 onion, finely chopped
1 carrot, finely chopped
4 cloves garlic, minced
24 oz tomato passata/marinara sauce – see note 1
2 teaspoon dried Italian herb
1 teaspoon oregano
1 teaspoon sugar
1 teaspoon ground fennel
1 teaspoon garlic powder
2 teaspoon onion powder
1 teaspoon salt
½ teaspoon black pepper
10 oz ziti pasta – see note 2
1 tablespoon salt
1 cup ricotta – see note 3
1½ cups shredded mozzarella cheese – see note 4
½ cup shredded parmesan – see note 4
Parsley or basil to garnish – optional

Notes

Note 1: Use a plain tomato passata or a simple marinara. Choose a brand without added meat ingredients.
Note 2: If you can’t find ziti, use a similar short tubular pasta such as penne or rigatoni.
Note 3: Whole-milk ricotta gives the creamiest results. If you prefer, use part-skim ricotta but expect a slightly less rich texture.
Note 4: Use vegetarian-friendly cheeses if you avoid animal rennet—look for labels that list microbial or vegetable rennet, or choose cheeses labeled suitable for vegetarians.

Equipment

Large pot for boiling pasta
Large skillet or saucepan
9×13-inch baking dish (or similarly sized casserole)
Wooden spoon or spatula
Colander

Step-by-step Instructions

Follow these steps in order. The directions have been rewritten into clear, step-by-step wording and preserve the ingredient amounts exactly as listed above.

Preheat and prepare: Preheat your oven to 375°F (190°C). Lightly grease a 9×13-inch baking dish or set it aside for assembling the casserole.
Cook the aromatics: Heat 1 tablespoon olive oil in a large skillet over medium heat. Add 1 onion, finely chopped, and 1 carrot, finely chopped. Cook, stirring occasionally, until the onion is translucent and the carrot has softened, about 5–7 minutes.
Add garlic: Add 4 cloves garlic, minced, to the skillet with the softened onion and carrot. Cook for 30–60 seconds, stirring constantly, until fragrant. Avoid browning the garlic.
Build the sauce: Pour in 24 oz tomato passata/marinara sauce. Stir to combine with the vegetables. Add the following seasonings directly to the skillet: 2 teaspoon dried Italian herb, 1 teaspoon oregano, 1 teaspoon sugar, 1 teaspoon ground fennel, 1 teaspoon garlic powder, 2 teaspoon onion powder, 1 teaspoon salt, and ½ teaspoon black pepper. Stir well so the spices are evenly distributed in the sauce.
Simmer the sauce: Bring the sauce to a gentle simmer, then reduce the heat to low. Let it simmer uncovered for 8–12 minutes to allow the flavors to meld and the sauce to slightly thicken. Stir occasionally to prevent sticking.
Cook the pasta: While the sauce simmers, bring a large pot of water to a boil. Add 1 tablespoon salt to the boiling water, then add 10 oz ziti pasta. Cook according to package directions until the pasta is al dente—slightly firmer than fully soft since it will finish cooking in the oven. Drain the pasta in a colander and return it to the pot or place it in a large mixing bowl.
Combine pasta and sauce: Pour most of the simmered sauce over the drained ziti, reserving about 1 cup of sauce for the top of the casserole. Gently toss the pasta with sauce until evenly coated. Taste and adjust seasoning if needed; add a pinch more salt or pepper only if desired.
Add ricotta: Dollop 1 cup ricotta over the sauced ziti. Gently fold the ricotta into the pasta leaving small pockets of ricotta for creamy bites. Try not to overmix; a few streaks of ricotta are fine.
Layer in the baking dish: Transfer half of the ziti-ricotta mixture to the prepared 9×13-inch baking dish. Sprinkle half of the shredded mozzarella (¾ cup) and half of the shredded parmesan (¼ cup) over this layer. Add the remaining ziti mixture on top, then spoon the reserved sauce evenly over the surface. Finish by sprinkling the remaining ¾ cup mozzarella and ¼ cup parmesan across the top for even melting and browning.
Bake: Place the baking dish in the preheated oven and bake at 375°F (190°C) for 20–25 minutes, until the cheese is melted and the top is golden and bubbling. If you like a more browned top, you can switch the oven to broil for 1–2 minutes—watch closely to prevent burning.
Rest and garnish: Remove the baked ziti from the oven and allow it to rest for 5–10 minutes. This helps the casserole set so it slices cleanly. If desired, garnish with chopped parsley or basil before serving.
Serve: Serve warm, scooping generous portions so each plate has a mix of sauce, pasta, and cheesy top. Leftovers keep well refrigerated for 3–4 days and reheat beautifully in the oven or microwave.

Troubleshooting & tips

Pasta texture: Cook ziti just to al dente because the pasta will soften further in the oven. Overcooking in the pot can produce a mushy casserole.
Cheese melting: Use freshly shredded mozzarella and parmesan for the best melt and texture. Pre-shredded cheeses often contain anti-caking agents that can affect melting.
Make-ahead: Assemble the casserole up to adding the top layer of cheese, cover tightly, and refrigerate for up to 24 hours. Add the remaining cheese and bake when ready—add a few extra minutes to the baking time if the dish is cold from the fridge.
Swap-ins: If you prefer veggies, stir in a cup of sautéed mushrooms or spinach when combining the pasta and sauce. For a creamier filling, fold in an extra ½ cup ricotta into the pasta mixture.
Serving ideas: Pair this Meatless Baked Ziti with a crisp green salad and a loaf of crusty bread to mop up the sauce. A simple side of roasted vegetables also complements the dish well.

Storage

Cool the casserole to room temperature, then cover and refrigerate for up to 3–4 days. Reheat individual portions in the microwave for 1–2 minutes or reheat the whole dish in a 350°F (175°C) oven for 15–20 minutes until heated through. To freeze, wrap tightly and freeze for up to 2 months. Thaw overnight in the refrigerator before reheating.

Final thoughts

This Meatless Baked Ziti is a dependable, crowd-pleasing recipe that proves you don’t need meat for big flavor. The carrot and onion create a subtly sweet base, the spice mix gives the tomato sauce complexity, and the ricotta plus two cheeses make the texture irresistibly creamy and melty. It’s an easy casserole to customize, and it’s forgiving for cooks of any skill level. Make it for a simple family dinner or bring it to a potluck—the leftovers will be just as good the next day.