Introduction: Portobello Mushroom With Grilled Feta Burger

Picture of Portobello Mushroom With Grilled Feta Burger

Here is a great meatless burger that non-vegetarians will also enjoy. This burger is first marinated with balsamic vinegar, basil, rosemary and garlic, then grilled, then a slice of grilled feta cheese is placed on top to make this burger really flavourful.

Portobello (also spelled portabella or portabello) mushrooms are brown crimini mushroom left to grow to reach 4-6 inches in diameter. Like other mushrooms they absorb flavor from marinade really well.

I got this recipe from a friend at work (thanks Kim!), and I thought this would be a great recipe to share.

Step 1: Ingredients/Equiptment

Picture of Ingredients/Equiptment

-portobello mushroom caps (try to find caps about the same size as your bun -there will be a bit of shrinkage when cooked)
-feta cheese(not the little cubes packed in oil but a block of the cheese)
-hamburger bun
-toppings for your bun such as mayo, lettuce, tomatoes, onions, whatever you wish

(this is for 2 servings)
- 2 tablespoon balsamic vinegar
- 2-3 teaspoons olive oil
- 1/2 teaspoon dried basil
- 1/2 teaspoon dried oregano
- 1 1/2 teaspoon minced garlic
- salt and pepper to taste (you don't need to add very much salt since feta cheese can be
quite salty)

Equipment/ kitchen utensils
-grill or BBQ
-cutting board
-measuring spoons
-basting brush
-aluminum foil or parchment paper
-shallow bowl

Step 2: Preparation Ahead of Time

Picture of Preparation Ahead of Time

Prepare mushroom
a)Clean mushroom caps with nylon brush (mushroom scrubber), or if you don't have one, wipe the tops with a damp cloth.
b)cut off stem with knife.

Prepare marinade
To a shallow bowl add:
2 tablespoons balsamic vinegar
1/2 teaspoon of each of dried basil and dried rosemary
1 1/2 teaspoons garlic
2-3 teaspoons olive oil and salt and pepper to taste.
Stir to mix.

Place mushroom in bowl for a minimum of 15 minutes to marinate, flipping the mushroom over at least twice. As you can see from my pictures the mushroom is not entirely submersed in the marinade, that is why its important to flip it over. I usually marinade my mushrooms an hour or two before I start making dinner.

note: after marinating the mushroom, do not throw out marinade, you will need it later.

Step 3: Grill Mushroom and Cheese

Picture of Grill Mushroom and Cheese

Preheat grill or BBQ.

Prepare cheese
a)Cut a slice of cheese, not too thin
b)place on parchment paper or aluminum foil and wrap tightly. If you are using a BBQ aluminum foil is probably better.

Start grilling
Place mushroom and packet with cheese on grill. They conveniently take about the same amount of time to cook.
Dab some left over marinade on mushroom with basting brush.
Grill for about 5-8 minutes. The longer the mushroom is cooked the meatier (in terms of texture) it gets.
Flip over and dab on more marinade and grill for another 5-8 minutes (there is no need to flip cheese over).

Step 4: Prepare Bun

Picture of Prepare Bun

While your mushroom and cheese are grilling you can prepare your bun and toppings.
You can toast bun and add a spread like mayonnaise, butter, margarine, or cream cheese(which is what I used). Add your vegetables; lettuce, sprouts, tomatoes, onions, pickles, pepper, or whatever suits your fancy.

Step 5: Putting It All Together

Picture of Putting It All Together

Remove mushroom from grill and place on bun.
Remove cheese packet from grill, unwrap (careful its hot!), and place on burger.
Add top of bun and serve with your favorite side dishes.


sexpistolsrule666 (author)2009-06-09

i just made this and it was DELICIOUS. ive been a vegetarian for a while now and some of the food can be so bland. really good! thanks!

I've been a vegetarian most of my life, and it's SO hard to find good everyday recipes for me to eat. Most of the time I have to eat what everybody else is eating and just pick the meat out. At work earlier someone was heating up something and I smelled mushrooms! I felt like a vampire in a frenzy after smelling human blood! I starting thinking about mushroom ravioli with smoked cheese sauce and my mouth began to water. Then I came home to find some french bread and starting thinking about sauteed mushroom, onion, gravy, and swiss cheese po boy, when I began looking for vegetarian mushroom recipes. I came across this one! OMG, this is perfect!! I can't wait to try this. I would grill it with a little Dale's seasoning on it in additon to this recipe. I don't really care for veggie burgers, but I eat them as an excuse to eat Dale's and BBQ sauce, heehee. Anyway, I can't wait to try this, it looks absolutely scrumptious!!!!!!!!

i thought vegetarians didn't eat cheese since its made from milk and milk comes from cows or goats

troyka (author)sillyzombie6662012-01-27

thats vegan..

ChrysN (author)sillyzombie6662011-04-23

There are varying degrees of vegetarianism, I eat eggs and cheese but no meat.

ChrysN (author)veggielife4me2010-10-20

Yes, it's much better than veggie burgers, enjoy!

kilroy1958 (author)2010-03-26

mmmm   mmmmm!
only way to be better----add venison patties!


PKTraceur (author)2008-11-16

A mushroom in a bun with cheese on top. Simple and sounds slightly appealing.

Spacecoyote (author)2008-11-16

That's not basil! (just kidding!)

ChrysN (author)Spacecoyote2008-11-16

LOL, I should have used the fresh stuff, to avoid any confusion.

spartana (author)2008-08-29

Sounds yummy. my stomach was rumbling as i was reading through. I'm am definitely going make this next we go shopping. Thanks for the recipe!

hogiewan (author)2008-08-28

I like to do something very similar by putting the grilled portobella on top of a beef patty

flopart (author)2008-08-28

This looks delicious! I'm making the transition to vegetarianism and this recipe makes me think I won't miss beef burgers one bit. Mmmm...

At Liberty (author)2008-08-28

I'm not a mushroom fan, but that looks SO good.... :oP

chimpchampion (author)2008-08-28

So very scrumptious I don't know how ground beef could hope to hold a candle to this! Thanks for the info! :)

ChrysN (author)2008-08-27

You can try this recipe and use vegetable broth instead of chicken broth and omit the mushrooms or or substitute something else for it. My favorite store bought vegetarian burger is the Gardenburger though so varieties contain mushrooms too.

whitish (author)2008-08-26

mmmmmm shrooms...

fantasticanalysis (author)2008-08-26

Hmm, your bags of dried basil and rosemary might get you in trouble if the coppers find them. Looks delicious, btw; stomach is getting grumbly just looking at it.

ChrysN (author)fantasticanalysis2008-08-26

lol, I guess I should find a better way of storing my herbs.

nickc321 (author)2008-08-26

mouth watering.... I need to go buy some large portobellos. also the idea of wrapping the cheese is brilliant, I hate peeling cheese off my electric grill.

LinuxH4x0r (author)2008-08-25

Looks absolutely delicious. I'll have to try it before the summer is over. (i'm already drooling)

About This Instructable




Bio: I like sewing and crafts,and trying new things. I'm vegetarian and always looking for new recipes. My cat's name is Mirko and ... More »
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