Vegetarian Burgers with Mushrooms & Black Beans

I saw this recipe on Bon Appetit, it is one of their BA’s Best. There are a lot of ingredients in this recipe & I had most of them at home. I did have to substitute some things. Full of vegetables & black beans, this burger is delicious & even a die-hard meat-eater would like these. There isn’t any meat substitute which I like. There is cheese & eggs in this recipe so it is not a vegan veggie burger, but not is really good

The mushrooms & black beans are roasted which I am sure intensifies their flavour. The texture was soft so I doubt that these would work on a grill but if you have a grill pan for the BBQ, you could cook these alongside meat burgers. These veggie burgers with roasted mushrooms & roasted black beans will stay on my menus! The sauce that is with this recipe is really good. I had a lot left over so I actually used it as a salad dressing the next day. I froze the leftover burgers & when we go to eat them, I will just make a fresh batch of the sauce!

Here is the link to the recipe on Bon Appetit

Here is the recipe I made with the substations I made… I did not have an barley or spiced paprika …

Vegetarian Burgers with Mushrooms & Black Beans


1 pound brown mushrooms, cleaned

2 tbsp olive oil, divided   you will use 1 tbsp for the mushrooms & 1 tbsp for the black beans


1 can of black beans, drained

1 onion, finely chopped

1 clove garlic, minced

1/2 cup unsalted, roasted cashews

1/3 cup old-fashioned oats

1/4 cup mayonnaise,

1 large egg yolk

1 tbsp miso

1 tsp chili powder

1/2 tsp honey

1/2 tsp paprika

pinch of cayenne pepper

1/2 cup grated cheddar cheese

 Sauce for the Burgers

1/2 cup mayonnaise

2 tbsp ketchup

1 tbsp finely grated onion *** I actually used my microphone

1 tbsp sweet burger relish

2 tsp adobo sauce from a can of chipotle chilies in adobo *** interestingly I had a can of this in my pantry…..not sure what you could substitute it with, but I’m sure you can just leave it out…or add a bit of hot sauce

1/8 tsp celery salt

1/8 tsp kosher salt


Preheat oven to 350f

Prepare 2 baking sheets by lining them with aluminum foil

  1. Stem & chop the mushrooms. Put them onto one of the prepared baking sheets & sprinkle with salt & pepper & toss with 1 of the tbsp of oi
  2. Roast the mushrooms until they are tender & have shrunk in will see the moisture come away from them…takes about 15 min depending on what size they ar. Let them cool
  3. Using the other prepared baking sheet, spread the black beans on it in an even layer
  4. Roast the black beans. They will split & dry out around the edges….takes about 10 minutes  Let them cool  *** I roasted the mushrooms & the beans at the same time & let them cool while I did the rest of the recipe
  5. Heat the remaining 1 tbsp oil in a saute pan & cook the onion & garlic until they are soft. Stir often Let cool *** I just put htis pan aside to cook the burgers in….
  6. In a food processor, pulse the cashews & oats until they are finely chopped, let cool
  7. In a large bowl, combine the mayonnaise, egg yolk, miso, chili powder, honey, paprika & cayenne together
  8. To the mayonnaise mixture, add the cooled roasted mushrooms *** don’t add the liquid form the pan is there is any
  9. Next add the roasted & cooled black beans
  10. Now add the cashew/oats *** you still need the food processor so don’t put it away yet
  11. Mix well & then use a potato masher to mash it all together
  12. Next step is, take some of the mashed mixture, recipe says to take 1/4 of it, & put it in the food processor, pulse & finely chop it. Add it back to the mashed mixture
  13. Now…we are getting close to being done…add the grated cheddar cheese. Season with salt & pepper
  14. Form the mixture into 6 patties
  15. Using the skillet that you used for the onions, or a cast iron skillet, heat some oil. Cook the patties until brown on both sides.
  16. Option here when they are finished cooking, you can put a slice of cheese on top to melt! This is in the original recipe. I did not do this…but I bet it is delish


  1. in a bowl, whisk the mayonnaise, ketchup, onion, relish & spices together

Gather any toppings you would like for your burgers

  • sliced tomato
  • lettuce
  • pickles
  • sliced avocado
  • onion …pickled red onions would be good
  • and of course any kind of bun you would like to put your burgers on!
Roasted black beans
Roassted mushrooms
Sautéed onions…mine were not small enough so I chopped them in the food processor before adding them
Mayo, egg, miso & spiced
All whisked together
Everything added to the bowl
Mix it up… already looking good!
using a potato masher to combine everything
You can see the mixture that I put into the food processor on the top of the picture, stir it together
Add the cheese & mix
Ingredients for the burger sauce
Here they are in the bowl
Ready to spread!
I could fit 3 patties at a time in my saute pan
Flipped over


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Marilyn Dishes

Many people ask me "how did you do that?" "will you show me how?' So I decided to make a blog about what I cook and bake. I am in no way a professional cook, but I love to feed people and try new things as well as making the "old foods" My friends are wonderful cooks, each with their own 'specialty' and i will be having guest cooks here, showcasing their favourite things to cook as well!! I hope you enjoy this blog and maybe decide to make some of these foods yourself! I am always available to answer any questions you might have about anything you see here. Some of my recipes are unique to me but most are not. They are all recipes I have found in a variety of ways, some are old family recipes that date back decades and some are new ones!

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