This Pizza Quinoa Stuffed Portabella Mushrooms recipe is perfect for Meatless Monday. Portabella mushrooms are stuffed with a pizza-flavored quinoa filling.
Website Problems
Were you trying to find something on my blog on Saturday and some strange, completely different site was on here instead? Yeah, that happened! I had a major (major) technical hiccup over the weekend. I had hired someone to move my portfolio from my old host to my current one and the portfolio was accidentally uploaded to this domain instead.
And after Oh My Veggies was restored, my recipes were down for a bit. I heard from at least one person who was about to make a recipe and then—POOF!—it had vanished. So I’m sorry if that happened to you. I also lost some comments, so if you left one and it’s not published, now you know why—it’s not because I’m a jerk who hates comments and people. Now that that’s out of the way, we can move onto even more important questions…
A Mushroom by Any Other Name
…is it weird that everyone else seems to say portobello mushroom and I say portabella? (According to Wikipedia, it is acceptable to call them portabella mushrooms. Acceptable but unpopular.) There are too many o’s in portobello and it just doesn’t roll off the tongue like portabella does. Also, I’m the boss of me; I do what I want. (Someday I’m going to get a tattoo that says that. If only all those words would fit on my knuckles.)
About the Recipe
On topic! Pizza Quinoa Stuffed Portabella Mushrooms. The pictures don’t do these justice, but trust me, they are delicious. I’ve been enamored with Food Doodles’ Pizza Quinoa Casserole recipe for a while now. Usually I throw some veggies into it, but then I got the idea to stuff the pizza quinoa into veggies. I was going to do zucchini, but since I already posted Taco-Stuffed Zucchini this summer, I went with portabella mushrooms instead. Taco zucchini! Pizza mushrooms! What other crazy fast food types of things can I stuff into vegetables? (Falafel Eggplant might be delicious, but please stop me when I post Cinnabon-Stuffed Butternut Squash.)
PrintPizza Quinoa Stuffed Portabella Mushrooms

Portabella mushrooms with a pizza-inspired quinoa filling. Adapted from Food Doodles’ Pizza Quinoa Casserole.
- Prep Time: 15 minutes
- Cook Time: 15 minutes
- Total Time: 30 minutes
- Yield: 4 servings 1x
Ingredients
- 4 extra-large portabella mushrooms, stems and gills removed
- oil mister or olive oil cooking spray
- salt and pepper, to taste
- 3/4 cup uncooked quinoa, rinsed thoroughly
- 1 (8 oz) can tomato sauce
- 2 garlic cloves, minced
- 1 tbsp minced fresh basil
- 1/2 tsp dried oregano
- 1/2 tsp onion powder
- pinch of red pepper flakes (optional)
- 3/4 cup mozzarella cheese, shredded
Instructions
- Preheat oven to 400°F.
- Spray both sides of mushrooms and place them bottom down on a rimmed baking sheet. Sprinkle the tops with salt and pepper. Bake for 10 minutes.
- While the mushrooms are baking, cook the quinoa according to package directions. Once it’s finished cooking, stir in the tomato sauce, garlic, basil, oregano, onion powder, and pepper flakes. Season to taste with salt and pepper.
- After 10 minutes, remove the baking sheet from the oven and flip the mushrooms over. If they fill up with liquid (sometimes they do), drain it off or blot them dry with paper towels.
- Divide the quinoa mixture into the mushrooms, then top each one with cheese. Return the baking sheet to the oven and bake for 10 minutes more. You can serve the mushrooms after this or turn on the broiler and broil them until the cheese is browned—about 3–5 minutes (just keep an eye on them so they don’t burn!).
This post was originally published on 5 August 2013.
81 Comments
Lisa @ Greek Vegetarian
August 5, 2013 at 10:03 pmI was wondering what that “Hello World!” post from you in my reading list was about!! The photos definitely do your portobella/o mushrooms justice! I love these, no matter how you say them.
Kiersten
August 7, 2013 at 8:33 pmWell, the good thing about taking lots and lots of shots is that you always get a few that are halfway decent. 🙂 I am just not a fan of photographing brown foods!
Natalie @ Once Upon a Cutting Board
August 5, 2013 at 10:29 pmI’ve wanted to make that pizza quinoa casserole for a while now but forgot about it – now I’ll have to try this version because I like the idea of stuffing it into mushrooms even more! Just the other week I was trying to figure out the right way to spell portobello/portabella.. I checked Mushrooms Canada’s website and they say portabella so I went with that – so Canada supports you! 🙂
Kiersten
August 7, 2013 at 8:30 pmMake it, make it! It is so good. 🙂 And it’s funny, I actually saw that Mushrooms Canada uses portabella too the last time I was looking it up, which made me feel justified in sticking with the A’s.
[email protected]
August 5, 2013 at 11:33 pmNow I want a tatoo on my knuckles… I’m thinking of tattooing, B.O.S.S. on there. ;-D
And I’ll take a plate of these amazing portAbellas! K?! Thanks! 😀
Kiersten
August 7, 2013 at 8:29 pmIf you tattoo BOSS on one hand, you absolutely must tattoo LADY on the other. BOSS LADY!!!!
Grace @ FoodFitnessFreshAir
August 6, 2013 at 10:11 amThese sound fantastic! I’ve been eating more portobello mushrooms than I ever eat lately, and have been loving just throwing them on the grill. They have such a great depth of flavor.
Kiersten
August 7, 2013 at 8:25 pmThey are SO good when they’re grilled, aren’t they? Yum!
Katie
August 6, 2013 at 10:38 amI made these last night (fast turn-around huh? They looked so good!) and they were AMAZING. I put half a diced pepper of the red and green variety into the quinoa mixture so it’s be like pepper and mushroom pizza. I put sausage and mozzerella on my meat-eating dining companion’s mushrooms and just put some vegan mozzerella on mine. Again, simply delicious! I didn’t use all the quinoa though (mushrooms were a little too small) so I get to look forward to that for lunches this week 🙂
Thank you for making such delicious recipes that are adaptable for any eating style!
Kiersten
August 7, 2013 at 8:24 pmYay, I’m glad to hear they were a hit! 🙂 And I love the idea of adding in peppers! When I make the Pizza Quinoa Casserole, usually I throw in some diced zucchini too.
mjskit
August 6, 2013 at 11:56 pmThank you for this recipe! Bobby and I are on a stuffed portabella kick lately so having another recipe to try is very exciting! I know we would both LOVE this one!
Kiersten
August 7, 2013 at 8:17 pmA stuffed portabella kick is a good kick to be on! 🙂 I hope you enjoy it!
Genevieve
August 8, 2013 at 3:58 pmI think the pictures definitely do do these justice! They look so cheesy on top and really similar to an actual slice of pizza, just with a mushroom on the bottom instead of a crust! I think you’re on to something with the idea of fall baking inside a squash…
Kiersten
August 11, 2013 at 7:49 pmThank you! I hate taking pictures of brown foods. 😉
Heidi @ Food Doodles
August 8, 2013 at 8:58 pmThis is the best idea ever! Oh my goodness, I so have to try this. And I think your pictures look awesome 🙂
Kiersten
August 11, 2013 at 7:48 pmI am so in love with your Pizza Quinoa! THAT is the best idea ever! 🙂
Kiran @ KiranTarun.com
August 8, 2013 at 10:33 pmMmmm.. so comforting and creative. Love this!
Mushrooms Canada
August 12, 2013 at 8:42 amPortabella’s are so much fun to stuff! It seems that anything and everything tastes great when packed into the juicy cap. Thanks for sharing this pizza recipe…and don’t worry, we also go with “Portabella” 😉
-Shannon
Kiersten
August 12, 2013 at 9:52 pmYay! Maybe I should move to Canada then. 🙂
Faye Ross
August 12, 2013 at 7:47 pmI made these this weekend. Loved them! They are so easy to do.
Kiersten
August 12, 2013 at 9:35 pmThank you for your comment–I’m glad you enjoyed them! 🙂
Rachel Cooks
August 13, 2013 at 10:10 pmI was just giving your site a little pinning-love and I saw this recipe! I did something similar with bell peppers! Great minds think alike…although mine had pepperoni. 😉 Love the idea of filling a portabello though. Can’t have enough mushrooms in my opinion.
Kiersten
August 15, 2013 at 9:22 pmThanks for the pins! 😀 And I actually thought about stuffing this into peppers too! (No pepperoni, though.)
Kelly @ Texas Type A Mom
August 18, 2013 at 10:45 pmThis is such a unique combination of ingredients! I don’t know if I could pull off such a beautiful creation.
Courtney @ The Fig Tree
August 20, 2013 at 8:07 pmYummmmmm! These look incredible! What a fantastic idea for an easy week night dinner. Cannot wait to make these. I’ll have to make them when Jesse is away for dinner though. *haha* He haaaaaaates mushrooms! Silly boy.
Kiersten
August 20, 2013 at 8:30 pmMushroom haters don’t know what they’re missing!
Jazzy
August 23, 2013 at 6:47 pmMade these last night with my mother! They were delicious and easy to make. Thank you!
Kiersten
August 24, 2013 at 3:16 pmI’m glad you liked them! 🙂
Twingle Mommy
September 2, 2013 at 2:09 pmI made these for lunch this week and they were amazing! I made 3 planning on sharing 1 with my husband but instead I hid the third one and ate it the next day. I decided not to tell him what he missed out on. Thanks for the great recipe!
Kiersten
September 2, 2013 at 8:41 pmYay, I’m glad you liked it! 😀
L. M Adams
December 3, 2013 at 11:52 amIs there any way you could add nutritional information for those of us who require it?
Kiersten
December 4, 2013 at 8:05 pmHere’s a website that calculates nutritional information for you: http://caloriecount.about.com/cc/recipe_analysis.php
Karishma
December 15, 2013 at 10:19 pmI can’t believe how good these were. They totally stastifyied my craving for pizza. Best of all, I didn’t feel guilty eating it. Thanks for sharing. I can’t wait to try some of your other recipes.
Kiersten
December 18, 2013 at 8:31 pmI’m so glad they were a hit–thank you for your comment!
Katie
February 12, 2014 at 11:11 pmI made these tonight and they were so good I ate two. I cheated and used Trader Joes fat-free pizza sauce but followed the rest of the recipe and will make it again soon.
Kiersten Frase
February 14, 2014 at 2:48 pmThere’s nothing wrong with saving a little time and using a shortcut now and then! 🙂 I’m glad you enjoyed the recipe!
Christy
March 7, 2014 at 4:52 pmDo you happen to have a calorie total per serving? I’m on a weight management program right now and that would be very helpful. Thanks for any info! 🙂
Kiersten Frase
March 9, 2014 at 7:09 pmI don’t, but here’s a recipe calculator you can use: http://caloriecount.about.com/cc/recipe_analysis.php 🙂
Jennifer
April 10, 2014 at 6:01 pmI made this last night and it was absolutely delicious! To add a little protein, I added some Tofutti ricotta to the mix before baking…seriously yummy!
Kiersten Frase
April 13, 2014 at 8:24 pmI’m glad it was a hit–thanks for your comment! 🙂
Melissa
April 20, 2015 at 12:58 pmLoved this recipe. Easy to make and came out delicious. Any idea what the calories/ nutritional info would be??
Adele
April 28, 2015 at 6:38 amI saw this recipe on the weekly meal planner and it was my first ‘purposeful’ vegetarian meal as my husband and I embark on a meat free life. It was tasty, delicious and looked great too, thanks for sharing this recipe.
Kiersten Frase
April 30, 2015 at 1:52 pmI’m glad you enjoyed it! Good luck with your transition to vegetarianism.
Emilie
June 4, 2018 at 7:27 pmJust made this for supper and it was delicious! What a great idea. Thanks!
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