Spaghetti Squash Lasagna with Scallion Gremolata

This spaghetti squash lasagna with scallion gremolata has the typical lasagna flavors, but with a pop of freshness from a herby, citrusy topping. #spaghettisquash #lasagna #gremolata #pasta

you may now call me madame president. i can’t decide if that sounds pretentious and foofy, or kind of kick-butt. maybe both. somehow i ended up the president of that information technology club i’ve mentioned a couple times. scary for sure (all those eyes! meetings with the dean and the consortium of other computer science club presidents!) but also exciting. i had a really good experience during my term as vp of marketing, and i attribute a healthy chunk of that to how the previous pres/internal vp led. i hope i can do the same for my new board.

i know i normally celebrate with cake (see: thai tea vietnamese coffee cake, chocolate mint cupcakes with chocolate shortbread crumble, matcha cake with strawberry swiss meringue buttercream), but this spaghetti squash lasagna with scallion gremolata is delicious, so it’s equally as worthy of being a celebration food as cake. heads up that it’s more squash than noodle heavy (though both are involved), and the noodles act as a structural support more than the main texture.

i was originally going to make this spaghetti squash lasagna from virtually homemade. then i started thinking about adding some noodles and olives, making a quick homemade tomato sauce and ooh what about serving it with an herb gremolata?! the final dish that you see here is a wee bit different, and better fits its new spaghetti squash lasagna with scallion gremolata moniker.

you still get that signature crunch (the closest texture cousin i can think of is jellyfish, but even that’s not quite right) of spaghetti squash, melty stringy cheese and rich tomato sauce that you would in that original spaghetti squash lasagna. it’s cozy and perfect as we tie up the last bits of “winter” (oh, southern california). now, the gremolata: it’s optional if you want to keep the more traditional lasagna flavor profile, but it’s the bam, the wake up call, the rooster in the morning if you want to mix it up a bit. it’s fresh, citrusy and herby and a little bit definitely goes a long way. you could, of course, use scallions instead of gremolata and call it a day. it’s delicious either way, i promise.

1 year ago: Hong Kong Style Dan Tats (Egg Tarts), Caramel Banana Upside Down Cake
2 years ago: French Onion Dip with Caramelized Onions and Greek Yogurt, Winter Squash Soup with Curry and Coconut Milk, Rant Thursday #1, UCLA, Will Jay and Fonuts
3 years ago: Sakamoto Nauml (Marinated Bean Sprouts), Mediterranean Baked Chicken

I really like the chewy, stretchy quality of fresh mozzarella in this spaghetti squash lasagna with scallion gremolata, but any melty, gooey cheese works! #spaghettisquash #lasagna #gremolata #pasta

Spaghetti Squash Lasagna with Scallion Gremolata
Prep Time
30 mins
Cook Time
1 hr 30 mins
Total Time
2 hrs
This spaghetti squash lasagna with scallion gremolata gives you the cheese-y, tomato-y, pasta-y lasagna vibes, but balances things out with a hefty amount of spaghetti squash.
Course: Dinner, Lunch, Main Course
Cuisine: American, Italian
Servings: 6 people
Calories: 419 kcal
  • 2 lbs spaghetti squash seeded and quartered
  • 1 onion chopped
  • 4 garlic cloves minced
  • 28 oz canned tomatoes I prefer whole but chopped is fine too
  • 4 no-boil lasagna noodles
  • 1/3 cup Spanish manzanilla olives chopped (optional)
  • 12 slices fresh mozzarella
  • 1/3 cup grated parmesan
  • 3 green onions chopped
  • 1/4 cup chopped cilantro leaves
  • 1/4 tsp finely grated lemon or orange zest
  1. Drizzle the squash with oil and sprinkle with salt, then roast at 375F for 45-50 minutes, or until fork-tender. Cool slightly, then scrape the squash into strands and discard the skin/shell.
  2. Heat some oil in a medium skillet over medium heat, then add the onion and saute until translucent. Add most of the garlic and saute until fragrant. Add the tomatoes with their juices, and simmer for 15-20 minutes, or until thickened. Break down the tomatoes with a pair of kitchen shears or the back of a fork if you like the sauce chunky, or use an immersion blender/normal blender for a smoother sauce.
  3. In a greased 8x8” baking pan, spread a thick layer of sauce on the bottom. Add half of the lasagna noodles, and another layer of sauce on top. Sprinkle with half of the olives, half of the mozzarella and half of the parmesan. Add all of the squash, then half of the remaining sauce. Sprinkle on the rest of the olives, then the rest of the noodles. Spread the rest of the sauce on top, making sure to completely cover the noodles, then finish with the remaining mozzarella and parmesan. The pan will be completely full.
  4. Place the pan on a baking sheet to catch any drips, then bake at 350F for 30 minutes. Increase the heat to 375F, and bake for 10-15 minutes, or until the cheese is browned. Meanwhile, mix the green onion, cilantro, lemon zest and remaining garlic in a small bowl; this is the gremolata.
  5. Let stand for 10-15 minutes, then slice and serve with the gremolata.
Recipe Notes

If you want to make a 9x13" pan, double all the quantities, then layer in a 9x13" pan. You may need to play around with the baking time a little, but as long as the noodles are soft, it'll be fine.

40 Replies to “Spaghetti Squash Lasagna with Scallion Gremolata”

  1. Heather, congratulations on becoming madame president! Sounds great 🙂 Omg I can’t imagine how you do studies, president-ship, cooking and blogging. That is amazing! I like the gremolata touch the most in this dish. Sounds delicious .

    1. thanks! also, pst: i stockpile recipes and pictures when i’m home on break, and most of the things i post are from then. sometimes i recipe test and photograph when i’m at school, but it’s easier (equipment wise, space wise, time wise, all the wise’s) at home.

  2. I have made this recipe 3 times and it is already a favorite at our house. After the first time, I substituted hot Italian turkey sausage and that has been a definite enhancement. I have made it in the squash shells and once in a casserole dish. Excellent either way. Tonight, I am going to try to freeze some of it, so we’ll see how that goes. We really like that this dish gives us a healthier option for enjoying lasagna.

    1. it’s so versatile! making it in squash shells makes sense because you contain most of the mess in the shell and then you can compost that after instead of having to wash another dish (;

    1. thanks! a little nervous, but also excited about it.

  3. Oh, Madame President, this sounds wonderful, and i love the addition of the olives and the gremolata, 2 of my favorite things to see in a recipe, and, strangely, things I often think of AFTER I put together something yummy like this. Maybe giving this recipe a try is all I need to change that type of thinking!

    1. as soon as i see olives, i’m like OLIVES??? I WANT. and i think we’ve all had those “why didn’t i think of that?” moments before 😉

  4. Salmon to meeeeeee is way better than celebratory cake 😉

    1. i’m not so sure about replacing cake with salmon, but i’d be game for salmon before the cake! especially if it was raw (nigiri or poke, please) or cold-smoked salmon, mmm.

  5. haha Nerd! I kid, that’s pretty awesome you’re president of the I.T club! I’m actually a huge nerd myself, I used to be from I.T as well. Okay this is scary how much we are alike haha! I still play video games and magic so I’m just as nerdy. Nerd buddies! This lasagna looks so flavourful! I would have never have thought of using a scallion gremolata that’s like the icing on the cake! wow! and that toasted CHEESE! :O

    1. in college, i’ve found that i tend to stay involved in things where i like the people, even if my personal interests/goals don’t exactly align with the org. (this is true for the it club, but also for a diy art club i was historian for, even though i am not crafty in the least, lol). i definitely lean more towards the business side than the technical side! also, toasted cheese makes everything better.

      1. That’s actually really cool and I admire that a lot. 🙂 As a nerd, I was always so anti-social – I actually still am. Borderline recluse.

        1. it’s been a journey from complete introvert to slightly less of an introvert (; i used to only hang out with people every other day, but now sometimes i hang out with people on consecutive days!! what a revolutionary thing.

  6. So awesome, congrats!! This looks so cozy and delish

    1. thanks! it’s extremely cozy and perfect for those cheesy, carby cravings. with the added benefit that you don’t feel like an anvil is stuck in your stomach after 😊

  7. Well Hello, Madame President! Congratulations, how exciting. I love me some squash, especially winter squash and spaghetti comes in season in the winter. I really like the addition of olives; I know this is tasty 🙂

    1. thanks! i saw some spaghetti squash recently and half wanted to stock up on it before it goes out of season. the idea of having to walk and bus back with pounds of spaghetti squash wasn’t that attractive though, so i resisted.

  8. Definitely kick butt Madame President! Very cool and what a kick butt way to celebrate – this looks so cheesey and gooood!

    1. i think the take away here is that celebrating with anything that involves cake or cheese works 😉

  9. Congrats on being president!! This lasagna looks great! I enjoy savory or sweets any day!

    1. thanks! i tend to have a sweet tooth, but if you give me enough sugar, then even i can end up craving savory goods (;

  10. Congrats Madame President! The lasagna looks delish and I love that you put a scallion gremolata on top; very creative!

    1. i love adding herbs (and fish sauce; those are my go to’s when i need a little bit of help in the flavor department), and this one definitely benefits from the gremolata.

  11. That’s awesome that you are president of the I.T. club! That’s so awesome. And I am jealous because I am so supremely computer illiterate ahahahah. This recipe sounds amazing! Love me a good lasagna! XOXO

    1. i don’t tend to think of myself as that computer literate (i’m typically around people who are a lot more technical than me, lol), but i recently had to help someone find the question mark button on her laptop keyboard and was taken back by that (extreme example, i know). i feel like lasagna is one of those things that is hard to get wrong, unless the noodles end up crunchy and hard 😢

  12. I am a huge fan of spaghetti squash! This looks delish!!! Thanks for sharing! <3 –

    1. spaghetti squash is so good!! when i’m lazy, i roast it, toss it with garlic, olive oil, parm and salt, and call it a day 😋

  13. This dish is so pretty! I love the flavor combinations you chose. Can’t wait to make this! P.S. Congrats on making president of the information technology club!

    1. for whatever reason, i tend to make more beige ish things, so the red and green pops of color in this one seem really nice (:

  14. congratulations, madame president! This is TOTAL celebration food :). It looks phenomenal!

  15. Congratulations, madame president! I know you are going to kick butt at that position! I mean, anyone who can make a mean lasagna can rule the world… right? 🙂 I am looooving this squash lasagna! Gremolatas are one of my favorite things to make in the spring, so I love that you made a scallion one to accompany the lasagna! Looks absolutely delicious! Cheers, girl!

    1. can the ability to make lasagna be a pre-requisite for being a leader?? i would love that (the lasagna has to go somewhere, and i can see a lot of happy people in general). i don’t make gremolatas enough, so i’m glad it made it on top of this (:

  16. I always celebrate with pasta! This one seems so delicious!

    1. thanks, silvia! i guess i need to start doing more pasta celebrations (;

  17. Yo PREZ. Well, this is both delicious AND gorgeous. I love spaghetti squash and you’ve made it even better by rendering it lasagna-fied! Perfect.

    1. hey wassup hello 😄 transition was last night, so it’s official official now. also, can we lasagna-ify everything? please and thank you.

  18. Heather, you know I love your recipes and that I adore the dishes you create. While I really like this plate of lasagna and think it looks oh-so-delicious, I really love the fact that you are PRESIDENT OF YOUR CLUB even more!!!!! OMG congrats on such a coo accomplishment and for being able to slide into the role fairly easy from the person who preceded you. You’re going to do such an amazing job and I can’t wait to read future posts with you discussing all that you’re doing. Congrats madam president, it sounds completely badass!

    1. ahh thanks!! it’s only week 1 and we haven’t started planning or executing the heavy hitters yet, but i’m optimistic about the new board and excited about what this year has to offer!

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