Why This Instant Pot Vegetarian Lasagna Works
Honestly, I wasn’t sure about cashew cheese. Sounds like something from a Whole Foods catalog, right?
But after soaking those cashews and blending them with Italian herbs, the texture was creamy enough to fool Jake. He ate two servings before asking what was in it.
✅ Ready in under 40 minutes
✅ No oven heat in Texas summer
✅ Vegetarian lasagna recipe Instant Pot friendly
✅ Uses Beyond Beef or similar alternatives
✅ Perfect for family-friendly meals
The layered pasta comes out tender without getting mushy, which I didn’t think would happen under pressure
What Makes This Vegetarian Lasagna Special
The spinach filling gives this Instant Pot lasagna with spinach a proper veggie boost without tasting like yard clippings.
✔ No-boil lasagna noodles : I used gluten-free pasta this time, but regular works just as well. Soak them briefly so they don’t crack when layering
✔ Vegan ground beef : Beyond Beef thaws fast and browns up nicely with Italian herbs
✔ Cashew ricotta : soaked raw cashews blended smooth with vegetable broth and garlic
✔ Vegan marinara : grab a good quality jar, low sodium if you can find it
✔ Vegan mozzarella shreds : melts under that steam pressure better than I expected
The dairy options here are totally flexible if you’re not going fully vegan.
Real talk, the cashew ricotta was the game-changer I didn’t see coming.
Making Vegetarian Lasagna in a Pressure Cooker
The whole pressure cook method keeps your kitchen cool, which matters when it’s 95 degrees outside in Austin.
Soak the cashews : cover them in water for 30 minutes while you prep everything else
Make the cashew ricotta : blend drained cashews with vegetable broth, garlic powder, oregano, parsley, salt and pepper until smooth
Brown the vegan beef : sauté mode on the Instant Pot, break it up like regular ground meat
Layer everything carefully : break noodles to fit, alternate marinara, noodles, cashew ricotta, and the vegan beef mixture
Add liquid and seal : pour in vegetable stock around the edges, close the lid tight
Pressure cook : high pressure for 12 minutes, natural release for 5
Top with vegan cheese : sprinkle the mozzarella shreds on top while hot, let steam melt it
Sophie asked if we could make this again next week. That’s how you know it worked.
Switch Up Your Instant Pot Vegetarian Lasagna
Quick vegetarian lasagna in an Instant Pot can go a bunch of different directions depending on what you’ve got.
Best cheese for vegetarian lasagna
Some folks swear by mixing the cashew ricotta with actual ricotta if you’re just cutting meat, not dairy. I tried that version for my brother who’s vegetarian but not vegan. The combo gives you that traditional tang with less prep work on the cashew side. Comes out super creamy.
Extra veggie loaded version
Last time I added diced zucchini and mushrooms to the vegan beef layer. Sautéed them first to get the moisture out, then mixed with the Beyond Beef. Jake didn’t even notice the extra vegetables, which is basically a miracle in this house. Added maybe 3 minutes to the prep but totally worth it.
Making vegetarian lasagna in a pressure cooker with different noodles
The gluten-free lasagna sheets I used were from Costco, but regular wheat noodles work exactly the same. Just remember to soak either kind for about a minute before layering. Don’t skip that step or they’ll crack when you try to break them to fit the pot.
Point is, this recipe bends however your family eats or whatever’s in your pantry.
Getting the Perfect Texture
Your Instant Pot Vegetarian Lasagna needs that natural release time to finish cooking the noodles just right.
Set it for 12 minutes at high pressure. When the timer goes off, resist the urge to quick release.
Let it sit for 5 minutes minimum. That’s when the vegetable blend settles and the pasta soaks up the extra liquid without turning to mush. You’ll know it’s ready when the cheese on top is melted and the marinara isn’t pooling at the bottom.
I messed up the first time and opened it too early. Everything slid around like a lasagna landslide.
The cashew ricotta firms up during the pressure cook cycle, kind of like how real ricotta does in the oven. If your noodles seem a bit firm after opening, give it another minute on pressure. Too soft? Cut back 30 seconds next time.
One thing I figured out: don’t pack the layers too tight. Leave a little breathing room between the noodles and the pot edges. Steam needs to circulate.
What Goes Well with This
I found out this pairs really well with lighter sides since the lasagna itself is pretty hearty.
Simple arugula salad with lemon dressing cuts through all that richness. I just buy the pre-washed stuff from H-E-B, toss with olive oil and lemon juice. Takes two minutes and Sophie actually eats greens when they’re peppery like arugula.
Garlic knots from the freezer section work great too. Pop them in the oven while the Instant Pot does its thing. The timing lines up perfectly and you get that bread to soak up extra marinara
At home, we always serve it with roasted Brussels sprouts when they’re in season. Quarter them, toss with oil and salt, roast at 425°F for about 20 minutes. Jake won’t touch them but more for the rest of us.
Whole thing comes together as a proper Sunday dinner without heating up the house for hours.
Keeping Your Instant Pot Vegetarian Lasagna Fresh
This vegetarian lasagna recipe Instant Pot style actually keeps better than the traditional oven version.
Storage
- At room temperature: Two hours max before the vegan cheese gets weird
- In the fridge: Cover tight with foil or transfer to an airtight container, good for 4 days easy
- In the freezer: Portion it out first in individual containers, freezes solid for up to 2 months
Reheating
Microwave works fine for single portions. About 90 seconds on high, covered. For bigger servings, I put it back in the Instant Pot on sauté mode with a splash of vegetable broth, covered, for about 6 minutes. The alternative cheeses reheat better than I expected, don’t get rubbery like some dairy versions do.
Oven method at 350°F for 15 minutes works if you want the top to crisp up again.
Anti-waste tip
Leftover lasagna cut into cubes makes a solid pasta bake base. Toss with fresh marinara and more vegan cheese, pressure cook for 5 minutes. Whole new meal.
Got more questions about swaps or timing? Check below
Complete Instant Pot Vegetarian Lasagna Recipe
The layers in this Instant Pot Vegetarian Lasagna come out surprisingly traditional for a plant-based version. Great for meal prep or when you need to feed vegetarian guests without making two separate dinners.
Instant Pot Vegetarian Lasagna (Vegan-Friendly)
Equipment
- 6-quart Instant Pot
- Blender
- mixing bowl
- Measuring cups and spoons
- Wooden spoon or spatula
Ingredients
- 16 noodles no-boil lasagna noodles gluten-free or regular; soak 1 minute before layering
- 16 oz vegan ground beef Beyond Beef; thawed
- 28 oz vegan marinara sauce
- 1 teaspoon dried oregano
- salt to taste
- ground black pepper to taste
- 1 cup vegetable stock for layering/added liquid
- 1 cup vegan parmesan cheese grated or shredded
- 8 oz vegan mozzarella shreds
- 1.5 cups raw cashews soak 30 minutes; drain well
- 0.75 cup vegetable stock for blending cashew ricotta
- 1 teaspoon garlic powder
- 1 teaspoon dried oregano for cashew ricotta
- 0.25 cup fresh parsley chopped
- salt to taste, for cashew ricotta
- ground black pepper to taste, for cashew ricotta
Instructions
- Soak the raw cashews in water for 30 minutes, then drain completely.
- Blend drained cashews with 3/4 cup vegetable stock, garlic powder, oregano, parsley, salt, and pepper until very smooth to make cashew ricotta.
- Set the Instant Pot to Sauté and brown the thawed vegan ground beef, breaking it up as it cooks.
- Season the vegan beef with oregano, salt, and pepper while browning.
- Soak the no-boil lasagna noodles in a pan of water for 1 minute; drain and set aside.
- Remove half of the cooked vegan beef to a bowl; leave the rest in the bottom of the pot as the first layer.
- Layer broken noodles to fit, then spread half of the cashew ricotta over the noodles.
- Pour on half of the marinara sauce and sprinkle some vegan parmesan over the top.
- Repeat the layers with remaining noodles, reserved vegan beef, remaining cashew ricotta, and the rest of the marinara.
- Pour 1 cup vegetable stock around the edges of the pot without disturbing the layers.
- Seal the lid and pressure cook on High for 12 minutes.
- Allow a 5-minute natural release, then quick-release any remaining pressure and open the lid carefully.
- Top with vegan mozzarella shreds and additional vegan parmesan; close the lid loosely or tent for about 3 minutes to melt before serving.
Notes
- For a non-vegan version, use dairy ricotta, mozzarella, and Parmesan; timing and method remain the same.
- Do not skip the quick soak for no-boil noodles; it helps prevent cracking during layering.
- Let the lasagna rest with a 5-minute natural release so noodles finish cooking without getting mushy.
- Optional add-ins: sautéed spinach (squeeze dry), mushrooms, or zucchini to boost vegetables.
- Use a 6-quart Instant Pot; do not overpack layers so steam can circulate.
- Storage: refrigerate up to 4 days or freeze portions up to 2 months; reheat in microwave or at 350°F in the oven.
- If noodles seem a bit firm, add 1 more minute of pressure next time; too soft, reduce by 30 seconds.
Common Questions About Instant Pot Vegetarian Lasagna
When I first tested this, I wondered if the cashew ricotta would even work under pressure.
Can I make quick vegetarian lasagna in an Instant Pot without soaking the cashews?
Not really. Unsoaked cashews won’t blend smooth enough and you’ll get grainy ricotta. Happened to me once when I rushed it.
What’s the best cheese for vegetarian lasagna if I’m not going fully vegan?
Mix half cashew ricotta with half real ricotta, then use regular mozzarella on top. Gives you that traditional taste with less prep work.
How do I make Instant Pot lasagna with spinach without it getting watery?
Squeeze the spinach dry before adding it to layers. I learned that if you sauté it first with the vegan beef, most moisture cooks off.
Can I double this vegetable lasagna instant recipe for a crowd?
Not in a 6-quart pot. Make two batches instead or use an 8-quart Instant Pot if you’ve got one, same timing works.
Try It and Let Me Know
This Instant Pot Vegetarian Lasagna tastes way better than it has any right to for being plant-based.
If you make it, tell me what you think in the comments. Especially if you swap ingredients around or try different vegetable blends. I’m always looking for new ideas to test.
Snap a photo and tag #EasyPressureEats or @EasyPressureEats if it turns out good. Love seeing what you guys come up with.
Rate it with those stars if you’ve got a second. Helps folks find stuff that actually works on weeknights
