© 2011 Green Kitchen Stories Portobello_burger_1

Portobello & Peach Burger for Designsponge

When Design*Sponge – one of the coolest design blogs on the web – asked if we would like to do a recipe for them, we were quick to say yes. So a few weeks ago we went out to our country house and made one of our favorite summer dinners, Portobello Burgers. We always eat them with mashed avocado and some kind of salsa, instead of the old ketchup and cheese combo. They are very easy to make and taste so incredible fresh. For this recipe we added grilled peaches instead of making a salsa.

Scroll down for the recipe or read the whole story on DesignSponge.

Grilled Portobello & Peach Burgers
Makes 6 burgers


6 portobello mushrooms
6 peaches
6 sweet potatoes
6 burger buns of your choice (If you don’t eat gluten, we have a quick gluten-free bun recipe on the blog.)
100 g fresh pea sprouts
5 small roman tomatoes, sliced
5 small spring onions, sliced
fresh thyme
olive oil
salt & pepper

Marinade Ingredients

4 tbsp olive oil
2 fresh rosemary sprigs
1 tbsp fresh thyme
2 garlic cloves
1/2 lemon
salt & pepper

Guacamole Ingredients

4 avocados
5 small Roma tomatoes
1 garlic clove
1/4 cup parsley
1/2 lemon
1 tbsp olive oil

Preparation: Clean the portobello mushrooms by carefully removing dirt from the caps with a kitchen towel or cloth; you can use a little water if needed. Pat dry. Cut the peaches in halves and remove the pits.

Making the sweet potato fries: Preheat the oven to 350°F. Cut the sweet potatoes in 1-inch thick, 5-inch long sticks. Put them on a parchment-covered baking sheet. Drizzle olive oil, salt and thyme over them and put in the oven. The fries need around 30 minutes before they are ready, but you need to stir after 15 minutes.

Making the marinade: Pour olive oil in a small bowl. Add one chopped rosemary sprig, chopped thyme, mashed garlic, freshly squeezed lemon juice and salt and pepper to taste. Stir around. Use the other rosemary sprig to brush the mushrooms and peaches with the marinade. When the grill is ready, grill the portobello and peaches for about 3 to 4 minutes on each side, while you use the rosemary stick to brush the marinade over them one more time.

Making the guacamole: Chop avocados, tomatoes and parsley roughly. Add them to a small bowl with mashed garlic. Squeeze lemon juice over it, and mash everything with a fork. It’s okay if it stays a little chunky.

Assembling the burger: Slice the buns in halves. Let them get some color on the grill. When done, place a big dollop of guacamole on the bottom bun, and add pea sprouts, tomatoes, spring onion, one portobello mushroom and two peach halves. Add the top of the bun, and insert a stick to hold it all together. Enjoy!

Photos by: Johanna Frenkel


  1. Posted 25 Jun ’11 at 21:51 | #

    I saw this on Design Sponge and loved it! This is absolutely on the menu plan for this week.

  2. Posted 25 Jun ’11 at 22:08 | #

    Something new to discover a wonderful mushroom burger and Design Sponge. I’ll have to go over and see what is going on there! I love seeing how the shots are being composed. Cool.

  3. Posted 25 Jun ’11 at 22:19 | #

    What an awesome opportunity! The shoot looks great! Congrats!

  4. Posted 25 Jun ’11 at 23:13 | #

    What a mouth-watering and beautiful report! I love your portobello and peach combo and topping it off with a creamy guacamole.
    My daughter Vera also loves kalamata olives and could probably eat up a whole jar given the chance…

  5. Posted 25 Jun ’11 at 23:15 | #

    oh that looks soo good! o så vackra bilder på fina familjen, puss1

  6. Posted 25 Jun ’11 at 23:34 | #

    Now this, my friends, is a burger with gusto. It’s not pretending to be a hamburger; it’s a sandwich in it’s own right. It’s got charisma. It’s also got peaches … which has inspired me to get grilling this week!

  7. Posted 25 Jun ’11 at 23:39 | #

    I love a good portobello burger, I’ll have to try it with a peach on top next time! Lovely pictures too by the way!

  8. Julia E
    Posted 26 Jun ’11 at 01:30 | #

    Congratulations on the invitation to do a guest post! These look delicious. I’m not always a fan of portobello burgers because they’re one of the things everyone tries to throw at the token vegetarian, but I’ll definitely have to try this way of eating them.

  9. Posted 26 Jun ’11 at 02:03 | #

    those look so tasty, i never thought to combine mushrooms and peaches before

  10. Posted 26 Jun ’11 at 03:49 | #

    congrats on design*sponge, and I love the family picnic photo. so cute!

  11. Posted 26 Jun ’11 at 05:49 | #

    COngrats! Beautiful pictures… Love how you have used peaches in the recipe!

  12. Posted 26 Jun ’11 at 12:52 | #

    This looks great…I have never seen portobello mushrooms but I read they are mature button mushrooms…Maybe I can grill and use more of them for my veggie burgers… ^_^

  13. Posted 26 Jun ’11 at 19:41 | #

    that looks like a beautiful burger! i love peaches, so under-rated!

  14. Posted 27 Jun ’11 at 04:45 | #

    Congratulations! Design Sponge is huge! I love avocado and salsa on my bugers- ketchup and mustard are so passe. Great recipe I cant wait to add it to summer must cook list.

  15. Posted 27 Jun ’11 at 07:29 | #

    So happy to see your feature on Design Sponge. You deserve it! The photos and the food look amazing – as always! :)

  16. Posted 27 Jun ’11 at 15:56 | #

    wow- these look amazing!

  17. Posted 27 Jun ’11 at 16:54 | #

    Vilken underbar blogg! Denna kommer bokmärkas och alla recept ska gås igenom :)
    Tack själv Luice för bra träning, du gör det jättebra! Lilla Elsa (om det är hon som är på bilderna?) är ju hur söt som helst!
    Ses på onsdag!
    Kram Emelie

  18. Posted 27 Jun ’11 at 22:06 | #

    Congrats on the story- glad to see the word is out on one of my fave blogs! And that “burger” looks absolutely delectable – it’s definitely on my summer bbq agenda! (once the heat wave in Paris ends, hope you’re keeping cool where you are! :)

  19. Posted 28 Jun ’11 at 21:58 | #

    I keep meaning to try portobello mushroom burgers… and I think this (summer) recipe is definitely going to do it! ;) Yum!

  20. Posted 3 Jul ’11 at 18:13 | #

    This looks amazing & simply delicious. Might try it out myself as I’m currently reducing my meat consumption, although it’s really, really difficult in a land such as France where meat is basically staple food.
    Elsa is beautiful and I have no doubt she will grow to become one heck of a foodie, you are blessed to have such a daughter.

  21. Posted 3 Jul ’11 at 20:57 | #

    Beautiful pictures! I love the picnic setting. This burger is a definite alternative to the meat and cheese bore and the potobello mushrooms look super juicy. Congratulations to the Designsponge feature! Good Stuff!

  22. Posted 4 Jul ’11 at 06:50 | #

    We’re having a family reunion with all of Christian’s family. I want to make this for everyone, it looks amazing and we have 25lbs of local peaches from the co-op to use. Congrats on being featured on Design*Sponge.

  23. Posted 15 Jul ’11 at 20:38 | #

    Goodness gracious, that is my kind of burger if I’ve ever seen one. Yummm.

  24. Posted 6 Aug ’11 at 15:09 | #

    Tried it last night. Everybody (including two non-vegetarians) loved it! Thanks for the recipe!

  25. Posted 5 Mar ’12 at 18:07 | #

    These look absolutely amazing!! LOVE the photography as well…very well done!

  26. Posted 12 Mar ’12 at 15:17 | #

    BEAUTIFUL! These photo’s really show how fabulous a portabella burger can be. Pairing portabella’s with peaches sounds simply delightful!


  27. Posted 30 Mar ’12 at 22:36 | #

    This recipe looks amazing, I’m pinning it for summer when we have peaches again!

  28. Posted 8 Apr ’12 at 05:35 | #


  29. Poppy
    Posted 22 May ’12 at 06:58 | #

    The most amazing and easiest burger to make! I ate them last night it was so delicious I will make them again for my party this weekend. Great app btw, i like it when designs meet with functions. Thanks so much for sharing your innovative ideas!

  30. Posted 27 May ’12 at 18:36 | #

    I found this post though Pinterest. The photo was so beautiful that I just had to come here to read the recipe! Love it! And love your site :-).

    I would like to invite you to share this post (and other posts :-) ) on a new photo based recipe sharing site that launched this month. The idea is simple: all recipe photographs are published within minutes of submission. And, of course, the images link back to the author’s site.

    It’s called RecipeNewZ (with Z) – http://recipenewz.com

    I hope you get a chance to visit and to share some of your delicious posts with our viewers. It would be a pleasure to have you on board :-)

  31. Sarah
    Posted 29 May ’12 at 16:23 | #

    Made this last night for guests and everyone loved it. So easy and looks and tastes much more impressive than time it took to make. Thank you! I’m excited to try more of your recipes!

  32. lisah
    Posted 29 Jul ’12 at 04:49 | #


  33. Natalie
    Posted 25 Aug ’12 at 21:37 | #

    I’ve never tasted a portobello burger before I made this, but it definitely won’t be the last time I make them! I followed the recipe closely, changing only the guacamole. I am allergic to avocado, so I used mashed peas instead. I assumed that each avocado would give one cup of mashed flesh. The pea guacamole fit well with the burgers, so I recommend it to anyone with a similar problem. I also don’t have a grill, so I broiled the peaches and mushroom caps for the given time. If you have a rack that you can broil, I suggest using that. The juice from the peaches can make the mushroom a little wet. The texture was fine, but it was very messy to eat. Use thick, drier bread if you can to avoid this problem. I put all of the marinade ingredients together six hours before I used it to allow the flavors to mingle. Don’t use regular onions instead of the spring! The brightness is a must.

    By the way: thyme with sweet potato fries? Awesome. Thank you!

  34. Posted 4 Sep ’12 at 23:15 | #

    I love the pics and the burger looks yummy!

  35. Posted 1 Oct ’12 at 18:56 | #

    I made this and loved it! A lot and a little difficult to eat, but amazing!

  36. Posted 20 Jun ’13 at 02:22 | #

    Such an AWESOME dinner tonight thanks to you guys! What a great combo! Thanks so much for putting this great vegan burger together! We will 100% make this again over the summer. DELISH!!!! Can’t wait for more recipes to come!

  37. Posted 8 Sep ’13 at 17:12 | #


    I made this recipe last night for dinner on my Big Green Egg. My wife was a little leery when I told her I was making a mushroom and peach burger, but it turned out fantastic!!! Thanks for the recipe, I can’t wait go through your site and see what else I can grill up!

    Take Care!

  38. Posted 6 Dec ’13 at 08:31 | #

    This recipe looks amazing,

  39. Posted 10 Apr ’14 at 20:58 | #

    Ohmyword!!! I made these tonight and they were divine! I’ve got your book and your app and am steadily working my way through your recipes. Yumm! I think my family and friends are getting a bit fed up with me raving on about all the amazingly deliciously healthy recipes I am trying out (although they seem quite happy when I try them out on them….)

  40. Inna
    Posted 25 Apr ’14 at 12:10 | #

    Hi guys,

    These look divine!
    Could you recommend any foil wrapped veggie dishes to go on the BBQ?
    I am going to a BBQ party in a serious meat-eating household and don’t want to be fussy about tongs, etc

    Thank you

  41. Bibiana
    Posted 22 May ’14 at 21:26 | #

    Thank you for posting such an amazing recipe. I wasn’t sure of the combination of mushrooms and peaches when I read the recipe. However gave it a go and it was fantastic!!!

  42. Sarah
    Posted 10 Aug ’14 at 21:47 | #

    This was absolutely delicious! Thanks for a recipe I’ll be making again and again.

  43. Kate
    Posted 23 Jan ’15 at 08:33 | #

    I made these tonight after realising that I hadn’t made them for 12 months. Such an awesome meal :-)

  44. Posted 6 May ’15 at 13:18 | #

    Sooo lovely recipe. I really like the portobello burger.
    Nice shots :)

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