Wednesday, August 3, 2011

Grilled Portobello Mushroom Burgers with Red Onion, Roasted Red Peppers, Spinach, Provolone & Pesto Mayonnaise


The Portobello Mushroom ~ they've been coined "the steak" of the mushroom world due to their thick, meaty texture and ability to soak up flavors.

Portobello mushrooms are an excellent option for vegetarians or for those cutting back on their red meat consumption - simply substitute half of your steak with some grilled Portobello...the mushrooms will take on the flavor of the meat while leaving you full and satisfied! 

Here I made "melt in your mouth" Portobello Mushroom Burgers.  I began by marinating the Portobello mushroom caps in....


a mixture of Worcestershire sauce, olive oil, garlic, seasonings and fresh herbs. (Recipe and Instructions Follow...)

After about an hour or so of marinating - grill the mushrooms, some red onion slices and assemble ingredients....


Toast bun, melt the cheese and...

Build your burger!


Truly melts in your mouth with the perfect combination of richness, flavor and texture!


Grilled Portobello Mushroom Burgers with Red Onion, Roasted Red Peppers, Spinach, Provolone and Pesto Mayonnaise

Marinate Portobello Mushroom Caps:

8 Portobello Mushroom Caps, cleaned
1-2 red onions, peeled of skin and cut into 1/2 inch sliced circles
1/2 cup Worcestershire Sauce
1/4 cup Olive Oil
2 cloves of garlic, diced
2 tsp steak seasoning (I used McCormick)
1 tsp kosher salt and fresh cracked black pepper (optional - only add if you think the marinade needs it)
A few sprigs fresh rosemary, sage, oregano and thyme (optional - I have tons growing in the garden so figured why not use it!)

Place all ingredients in a Ziploc bag and squish all around (careful not to break the mushroom caps).

Allow to marinate for no less than 30 minutes, preferably 1 to 2 hours.

Prepare your Pesto Mayonnaise

Simply mix together 4 tablespoons of quality store bought Mayonnaise with  1-2 teaspoons quality store bought (or homemade) pesto.

Stir together and adjust to your specific taste. 

Prepare your Grill

Preheat your grill to high and grill the red onion slices until lightly charred on each side about 5-6 minutes each side.

Grill your marinated mushroom caps about 4-5 minutes on each side.

Prepare your Bun

Preheat your broiler and place one slice of provolone cheese on the bottom part of bun (cheese folded to fit nicely on the bun).

Place both sides of your bun (inside facing up of course) under the broiler until the cheese is melted and the bun is crispy and browned on the edges.  Keep an eye not to burn the bun!!!!

Once the cheese is melted, remove from broiler and spread the other side of your bun with the prepared Pesto Mayo.

Top your Portobello Mushroom burger with the grilled red onion, roasted red pepper slices and fresh spinach or arugula.  Enjoy!



StephenC said...

I have only a stove top grill, but I am sure I could reproduce this. I adore mushrooms of all kinds.

Unknown said...

Absolutely! Or you could broil the mushrooms too :)

Bo said...

Where's the beef? :). I love mushrooms...these sound great.

Velva said...

So, so delicious. You would never miss the meat. Love it.


Nuts about food said...

Sniffle...can't get those here...would have been perfect for my detox week.

Lea Ann said...

This really looks delicious and fresh.

Unknown said...

I love portobello mushroom burgers!! Chris laughs at me, but I don't care.. they can almost make you forget about ground beef burgers!!

laurie said...

This makes me drool!

Karen said...

I can't say that I've ever had a portobello mushroom burger, but it certainly looks hearty and yummy. I LOVE the idea of the pesto mayo...great addition of some extra flavor there.

Aarthi said...

this looks yummy

Unknown said...

Thanks all. I have to admit...I wasn't that excited to eat these, but then when I did ...I couldn't get enough!!! SO DELICIOUS and such a great thing to make for any non-meat eaters!!!

Nicole said...

I love the flavor of portobellos. I never miss the meat.
Hey, how far are you from Manhattan? Do you ever come into the city? We're moving there in 10 days!

Kevin (BBQ Smoker Site) said...

We grill Portobello mushrooms quite often and really love 'em. I imagine the bun is key here. What specific kind did you use here?

Sam Hoffer / My Carolina Kitchen said...

Great burger. Portabellos DO taste like steak. Love your toppings and fabulous photos.

Unknown said...

@Nicole -

JEALOUS!!! We lived on the Upper East Side for 5+ years! We're in NJ now, but my brother and his fiancee live downtown. We will HAVE to meet up in the city! Maybe this Fall?!

@Kevin -

it's funny you ask because I used a super basic, TOASTED, white hamburger bun that was very good because you don't want a real chewy roll as it may just squeeze the mushroom and everthing else know what I mean?!

BUT THAT husband and I were saying how a nice, soft, onion roll would be super delicious too!

BTW, just started following you on twitter! :)

Nicole said...

Let me know when you come into the city. We're going to house hunt the week of the 15th in Tribeca. Would be so much fun to meet up!

Magic of Spice said...

Love this burger...and the pesto mayo sounds fantastic!

Dentists 90048 said...

Mmm - I love mushrooms, and I love burgers... So this really is the perfect combination of two of my favorite things! :)


Trader Joes Recipes said...

This looks great! I love substituting mushrooms for meat every now and again.