
Big, cozy mushroom lasagna turns basic pantry staples into a truly unforgettable vegetarian dinner. Cheesy pasta sheets and rich mushroom sauce come together for a dish that's all about comfort and flavor. Mushrooms add a deep, earthy bite that even folks who can't go without meat will love. Add bright herbs and some lemon peel for a pop of freshness that really makes this one stand out.
I first tried making this on a gloomy rainy afternoon when I just wanted some good food to cheer me up. After trial and error with different versions, I landed on this mix of ingredients that just hits the spot. These days, my family is always asking for it, and it's the first thing gone at every potluck I bring it to.
Tasty Ingredients
- Lasagna pasta sheets: Use dried, fresh, or the no-boil kind—whatever you’ve got on hand. Each gives the layers a little something different, but all come out tasty.
- Ricotta cheese: Lays down a creamy, dreamy layer next to the bold mushroom sauce. Full-fat makes it extra good, but low-fat's fine too.
- Lemon zest: Tossing in some lemon peel brightens everything up so it never feels too heavy. Go for organic lemons so you’re not eating those weird chemicals.
- Crushed tomatoes: These make up the juicy base of the mushroom ragù. Grab plain canned ones so you’re in control of how it tastes.
- Mushrooms: The star of the show with their hearty taste and meaty feel. Use cremini if you’re keeping it simple, but mixing in shiitakes or oysters makes it feel extra fancy.
Dreamy Instructions
- The Setup:
- Grease up a 9×13 pan and get your oven preheating to 375°F. Smear a little of the mushroom ragù at the bottom so nothing sticks. Lay out 3 to 4 lasagna noodles, letting them overlap just a bit. Top with a scoop of the ricotta blend, spoon on more ragù, and throw some basil over it. Do this until you’ve used everything, making sure the last layer is plenty of ragù. Finish it off with a healthy sprinkle of Parmesan for that awesome golden crust when it bakes.
- Sauce Magic:
- Pop some tomato paste into your mushrooms and cook it for around a minute so it gets a little roasty. Pour in the crushed tomatoes, a splash of veggie broth, and a bit of sugar if you like. Let it barely simmer, then turn down the heat and let it bubble quietly for 20 to 25 minutes, giving it a stir every now and then. You want the sauce to thicken up and get super flavorful. Swirl in a dash of balsamic vinegar at the end for a little sweet tang. Taste and tweak any seasonings now—remember, it’ll taste even more intense after baking.
- Let’s Get Cooking:
- Heat a heavy skillet with olive oil over medium until it shimmers. Toss in chopped onion and let it go until it’s soft and see-through, about five minutes. Stir in the minced garlic and leave it for half a minute until it’s smelling great (don’t let it brown). Dump in the sliced mushrooms and season with salt, pepper, thyme, and oregano. Let them cook for 8 to 10 minutes. They’ll drop some water and then turn brown for that deep, mushroomy flavor.
Personally, I love tossing in both cremini and shiitake mushrooms. The first time I cooked it this way, my son (the one who always picks out mushrooms) came back for seconds and even wanted leftovers for lunch. Right then, I knew I'd always be making this one.

Amazing Pairings
This lasagna’s richness goes great with lighter sides. Serve it with a fresh arugula salad tossed in lemon dressing—the peppery bite and tanginess just cut through the creamy layers. Scoop up leftover sauce with some toasty garlic bread. Cold out? Pour a glass of red—something in the Chianti or Sangiovese family tastes awesome next to the earthy mushrooms.
Super Handy Freezing
The best thing about this dish: you can freeze the whole thing, cooked or not. Build the lasagna in a freezer-safe dish, cover it tightly, and stash it away for up to three months. Thaw it overnight in the fridge before baking and pop it in the oven with about 15 extra minutes. Got leftovers? Let them cool, wrap up individual slices, and freeze for quick weeknight dinners. Grab and go made simple.
Big Flavor Tip
If you want even more mushroom oomph, soak some dried porcini mushrooms in hot water. Chop them up and mix them in with your fresh ones. You can use the soaking water in place of some broth for deep, rich taste. It takes barely any extra effort and makes a big impact. Just pour the soaking water through a fine strainer so you don’t get any grit.
Customize Things
Toss in a layer of sautéed spinach for color and extra veggies. Add roasted red pepper for a sweet, smoky vibe. Swap a bit of the ricotta for goat cheese when you want a tangy kick. Try different mushrooms every time for new flavors.

Whenever I’m feeding vegetarian pals or just want a big, filling no-meat meal, this is my go-to. The mix of cheesy layers and deep mushroom flavors is so classic and hearty that no one misses the meat. Honestly, I usually double up so there’s enough for lunches all week long.
Frequently Asked Questions
- → How far in advance can I prep this mushroom lasagna?
- You can build it up to a day ahead. Wrap it up, stash it in the fridge, then let it sit out for half an hour before you bake. Add about 10-15 minutes to your bake time since it’ll be cold.
- → What's actually in this mushroom filling?
- You'll need about 6 cups of sauce made with different mushrooms—try cremini, shiitake, or portobello. Toss them in a pan with chopped onions, some garlic, whatever herbs you like, and tomatoes for a hearty flavor.
- → Is it okay to freeze my mushroom lasagna?
- Definitely! You can freeze cooked or uncooked. If it’s not baked, just put everything in a baking dish, cover it well, and keep in the freezer for up to three months. Thaw in the fridge before baking. For the baked one, cool it, freeze in pieces or whole, wrap up tight, and it'll be good for two months.
- → Which ricotta should I grab?
- Go for whole milk ricotta for the softest, creamiest layers. Want even better texture? Let it drain in a cheesecloth in a strainer for thirty minutes to get rid of the extra water.
- → How do I make this lasagna vegan?
- Just swap in tofu ricotta—blend firm tofu with a splash of lemon, nutritional yeast, and your fave herbs. Choose vegan cheese for topping, and if you’re making pasta at home, go for a no-egg version.