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Vegetarian Baked Spaghetti

This easy healthy recipe for vegetarian baked spaghetti is sure to be a new family favorite!

The best vegetarian baked spaghetti recipe - easy meatless dinner that tastes delicious! #meatless #vegetarian #bakedspaghetti #dinner #vegetarianspaghetti
Sometimes you just need good old comfort food, and this vegetarian spaghetti is one of my favorites. 

Baked spaghetti is the perfect comfort food!

I like to make comfort food a bit healthier, while still giving me all of the warm cozy flavors that I crave.

This recipe is one of my favorite pasta recipes, as is this Veggie Lover’s Pasta Bake. 

This spaghetti made the list of our 25 best vegetarian recipes!

The best vegetarian spaghetti recipe - easy meatless dinner that tastes delicious! #meatless #vegetarian #bakedspaghetti #dinner #vegetarianspaghetti
Spaghetti is one of my go-to comfort foods.

We have it pretty often, and love that it makes a ton of food.

This meal makes 6 servings total!

As a kid I’m not sure I was crazy about leftovers, but as an adult I love them!

Less cooking for me.

Any night that we are eating leftovers is a good night for me!

The best vegetarian baked spaghetti recipe - easy meatless dinner that tastes delicious! #meatless #vegetarian #bakedspaghetti #dinner #vegetarianspaghetti

How to Make Vegetarian Spaghetti:

Veggies are key for making meatless spaghetti.

I personally love using mushrooms every time I make a meatless spaghetti sauce, as they have great texture and are really satisfying.

For this recipe I also used bell peppers, onions, and fresh garlic.

I love making my baked spaghetti a bit more wholesome by using whole wheat spaghetti noodles.

You don’t taste the difference, and they are more nutritious than white pasta noodles.

Lastly, for big flavor, we are using freshly grated parmesan cheese.

Grate it yourself and it has so much flavor!

I also use shredded mozzarella cheese which pairs perfectly with the parmesan.

The best vegetarian spaghetti recipe - easy meatless dinner that tastes delicious! #meatless #vegetarian #bakedspaghetti #dinner #vegetarianspaghetti

This spaghetti is hearty and filling with bites of warm melty cheese.

Whether you are vegetarian or not, I guarantee you’re going to love this delicious dinner. 

baked spaghetti in a casserole dish

It’s what pasta lovers’ dreams are made of!

The best veg spaghetti recipe - easy meatless dinner that tastes delicious! #meatless #vegetarian #bakedspaghetti #dinner #vegetarianspaghetti

Are you making this recipe? I want to see! Don’t forget to tag me on instagram @buildyourbite and hashtag #buildyourbite with your recipe creations!

Be sure to pin this recipe for later and follow Build Your Bite on Pinterest for all the latest delicious recipes!

The best veg spaghetti recipe - easy meatless dinner that tastes delicious! #meatless #vegetarian #bakedspaghetti #dinner #vegetarianspaghetti
This one’s a guaranteed family pleaser, perfect for a quick weeknight dinner!

More vegetarian pasta recipes

The best veg spaghetti recipe - easy meatless dinner that tastes delicious! #meatless #vegetarian #bakedspaghetti #dinner #vegetarianspaghetti

Did you make this recipe? Be sure to leave a star rating below!

Vegetarian Baked Spaghetti Recipe

Yield: 8 servings

Vegetarian Baked Spaghetti

The best vegetarian baked spaghetti recipe - easy meatless dinner that tastes delicious! #meatless #vegetarian #bakedspaghetti #dinner #vegetarianspaghetti

Easy and delicious vegetarian baked spaghetti recipes

Prep Time 10 minutes
Cook Time 30 minutes
Total Time 40 minutes


  • 1 large onion, diced
  • 8 large garlic cloves, minced
  • 16 oz mushrooms, diced
  • 1 green bell pepper, diced
  • 2 tablespoons extra virgin olive oil
  • 1/2 teaspoon sea salt
  • 1/2 teaspoon pepper
  • 2 teaspoons dried basil
  • 1 teaspoon dried oregano
  • 1 (25 oz) jar of organic pasta sauce (I used mushroom flavor)
  • 1 cup parmesan cheese, freshly grated
  • 1 1/2 cups shredded mozzarella cheese
  • 1 teaspoon crushed red pepper flakes (optional - see notes)
  • 16 oz whole wheat spaghetti


  1. Cook spaghetti according to package directions, set aside
  2. Combine onion, garlic, mushrooms, green pepper, olive oil, sea salt, pepper, basil and oregano in a large skillet.
  3. Sautee on medium high heat, stirring frequently for 10-15 minutes, or until mushrooms cook down and evaporate their liquid
  4. Add pasta sauce to veggie mixture and stir to combine
  5. Using a 9 X 13 baking dish, first lay down all of the cooked spaghetti on the bottom
  6. Top spaghetti with 1/2 cup mozzarella and 1 cup of parmesan cheese
  7. Pour sauce over top and mix up with tongs until well combined (add optional red pepper flakes here if desired)
  8. Top with remaining 1 cup of mozzarella cheese sprinkled over the top
  9. Bake at 450 degrees for 12-15 minutes, or until cheese is bubbly and starting to brown


I love adding red pepper flakes for spiciness, if you do not like spicy things, simply omit from the recipe.

Nutrition Information:



Serving Size:


Amount Per Serving: Calories: 257Total Fat: 12gSaturated Fat: 4gTrans Fat: 0gUnsaturated Fat: 6gCholesterol: 22mgSodium: 545mgCarbohydrates: 28gFiber: 4gSugar: 4gProtein: 13g

Did you make this recipe?

Be sure to tag me on instagram @buildyourbite and hashtag #buildyourbite with your recipe creations!

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Eileen Burden

Friday 29th of November 2019

if I use gluten free spaghetti, will this recipe meet celiac gluten free requirementsts


Tuesday 16th of April 2019

OH MY GOSH!!!! This is sooooooo yummy. My roomate said he didnt want but "just a little bit" because it dont sound good without meat.....its just the 2 of us, i used 2 jars of prego instead of 1, and baked it a bit longer....dont you know the WHOLE pan is gone!!!!! Hahahaha i was hoping for leftovers to eat on a couple days, but he ate almost ALL of it!!! Lolol. This is sooo very good!! And it was easy to make. Took a bit longer then states and i added more stuff like zuicunni too...this is just amazing!! THANK YOU THANK YOU a million times over for this!!! Now maybe i can start cooking at home.

Now im going to make a list and try the mushroom lagasena one next!! Youre a rockstar here tonight!!! Lol

Joy Shull

Friday 19th of April 2019

haha I am so glad you both enjoyed it! Thanks for your kind comment, you made my day! I hope you enjoy the recipes :)


Tuesday 16th of April 2019

I am making this right now....its in the oven as i type. I dont have a instagram , so i cant take a picture. I did also as another comment person said and fried some zuicunni in with the mushrooms and onions and green peppers. My only wish is i had fresh sooooo not a girl whom cooks (my family git these genes haha) and i havent ate meat in 27 years, but to be honest im more of a junk food junkie and eat out every night. Finding this site hopefully will give me other options to stary trying other things because i need to loose weight for health reasons, and this reciepe seemed super easy and quick without a lot of extra stuff i dont have.

I am really eyeing that mushroom lasagna, and a zitti i found on here too. Might see how this goes first.

Thank you very much for sharimg these and making it easy enough to try :)

Will let you know how it goes.

Joy Shull

Friday 19th of April 2019

I am so glad you loved it, let me know what else you try!


Sunday 2nd of December 2018

This was good, except the time for me to prepare and cook/bake everything was a bit longer than 90 minutes. /:

Donna Van Cleef

Wednesday 28th of November 2018

Hi Joy, This looks like the perfect recipe, but I am planning to make this for a large party, and will use 2 9' round casseroles, so will make 1 1/2 times the amounts. I'll be making it the day before and refrigerating it. What temp and how long would you reccomend for just out of the refrigerator? Also I'm thinking I should leave the topping Mozzarella off until the last 15 minutes.? Your thoughts please.. Thank you! Donna in Tacoma Washington

Joy Shull

Friday 30th of November 2018

Hi Donna!

I would start with 350 degrees for 25 - 45 minutes. It will depend on your oven, but you will be able to tell it is done when the cheese starts to bubble. I would add the mozzarella in the last 15 minutes like you suggested! To brown the cheese at the end, you could broil for the last 2 - 3 minutes until browned. Just keep a close eye on it!