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Bean & Oat Burger with Cajun Mayo

45 min


This is our go-to burger recipe. The delicious patties are made with a mixture of pinto beans, sunflower seeds, oats, and aromatic spices. Served on a soft bun with sautéed mushrooms and bell peppers in chipotle adobo sauce, and served with a zesty Cajun mayo.



45 min


20 min


25 min


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  • 2 Tbsp (14 g)
    ground flaxseeds
  • ¼ cup (60 mL)
  • 1 tsp (5 mL)
    olive oil
  • 2
    medium onions, diced
  • 3
    cloves garlic, minced
  • 1½ cups (256 g)
    cooked pinto beans
  • ⅓ cup (48 g)
    roasted sunflower seeds
  • ¾ cup (76 g)
  • 1 Tbsp (2 g)
  • ½ Tbsp (3 g)
    ground cumin
  • ½ Tbsp (3 g)
    paprika powder
  • 2 tsp (5 g)

Sautéed veggies

  • 1 tsp (5 mL)
    olive oil
  • 9.9 oz (280 g)
    button mushrooms, thinly sliced
  • 2
    red bell peppers, thinly sliced
  • 3 Tbsp (45 mL)

Cajun 'mayo'

Burger assembly

  • 6
    burger buns
  • 1 cup (20 g)
  • 1 cup (219 g)
    coleslaw (optional)
  • ¼ cup (38 g)
    pickled jalapeños, sliced (optional)


  1. Add the ground flaxseeds and water to a large bowl, mix, and set aside to gel.
  2. Add the oil to a sauté pan on high heat. When hot, add the onions and garlic and sauté until golden. Transfer the mixture to the bowl containing the flaxseeds.
  3. Return the empty pan to the stove and sauté the mushrooms in oil on medium-high heat for 5 minutes.
  4. Then, add the bell peppers, and chipotle sauce. Cook for another 3 minutes. Set aside.
  5. Returning to the bowl, add the remaining ingredients for the patties. Use a fork to mash everything together, and set aside.
  6. Add the ingredients for the cajun ‘mayo’ to a bowl and mix together.
  7. Scoop up a heaping ½ cup of the bean mixture into your hands and shape them into patties.
  8. Add some oil to a non-stick pan on medium-high heat. Cook the patties for 3 - 4 minutes per side, or until lightly golden.
  9. Serve on burger buns with coleslaw, the sautéed mushroom and bell pepper mix, and topped with Cajun mayo, arugula, and jalapeños. Enjoy!


  • Store the cooked patties in airtight containers in the fridge for up to 3 days, or in the freezer for up to 2 months.

Let us know what you think

Plate method

The Plate Method is a visual tool that helps us ensure our dietary needs are on track. Touch the image below to see how this recipe measures up.

Grains & Starches 54%

rolled oats

burger bun

Proteins 8%

ground flaxseeds

cooked pinto beans

roasted sunflower seeds

nutritional yeast flakes

Fruits & Veggies 38%

medium onion

clove garlic

button mushrooms

red bell pepper



pickled jalapeño

No significant sources of calcium

ground flaxseeds

olive oil

roasted sunflower seeds

olive oil

vegan mayonnaise

Nutrition info

We believe that focusing on numbers can harm our relationship with food. Instead, our philosophy is to Nourish the Cells & the Soul. If you require specific nutrition information due to a medical condition, please consult with a dietitian or physician. The nutritional information provided is composed with the utmost care. However, we cannot guarantee the correctness of the displayed values, see also our disclaimer.

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Discussion & Rating

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k.Rosa - Aug. 23, 2023, 6:50 p.m.

These were so tasty! I added extra glazed onions to the red paprika’s and mushrooms and I doubled the chipotle sauce.
A nourishing treat :)

Katerina - Aug. 18, 2023, 6:59 a.m.

Can i make these in the bbq?

PUL Team - Aug. 18, 2023, 8 a.m.

Hey Katerina, we haven't tested out barbecuing these patties, but we don't imagine they would grill well as the patties are rather soft. Frying on the pan is the best bet for these ones to ensure they hold their shape 🤗

Jella - Aug. 5, 2023, 12:38 p.m.

Just used this recipe for the patties. They were really easy to make! Especially with a food processor :) didn’t see salt listed in the ingredients but I did seasoned them with a little salt. Perfect recipe for some healthy and wholesome comfort food☺️

PUL Team - Aug. 5, 2023, 9:25 p.m.

Hey Jella, so glad you enjoyed this recipe! Our cajun seasoning is rather salty, which is why we chose to omit salt from our ingredient list, but of course, you can add more to your preference 😊

Jella - Aug. 7, 2023, 8:40 p.m.

Didn’t realize Cajun seasoning had salt in it. Also didn’t have any at home😆 so I spiced it up with some chili powder instead 😁

Diana - July 23, 2023, 1:29 a.m.

Really good burgers, but there was too much onion in my mix. I'd greatly appreciate weights and measures for the onion in your recipes since "medium" is not terribly objective. Easy edit for next time. Thanks, as always.

PUL Team - July 25, 2023, 5:59 a.m.

Hey Diana, thanks for sharing the feedback! In the meantime, in case it helps, our medium onions are around 110 grams 😊

Nicole - July 18, 2023, 3:43 a.m.

Just made it, this was delicious!

Tareena Dhanani - June 27, 2023, 10:06 p.m.

Loveddd the recipe. So so flavorful. Love where there is each step by step make along feature with timer. 🤩

PUL Team - June 28, 2023, 9:11 a.m.

It means so much more than we can express, Tareena! Thank you ✨

Ankyra - June 10, 2023, 7:44 p.m.

Sounds delicious, going to try those asap😀
I just love your recipes, everything I tried was sooooo good. Some dishes I adjusted to my likings (I hate olives, Fetacheese and Radieschen 😁🙈)
The double chocolate granola is an a time favorite ❤️❤️❤️
Thank you ❤️ ❤️ ❤️

PUL Team - June 10, 2023, 10:20 p.m.

Awe thank you so much, Ankyra 🤗 and hope you enjoy the recipe!

Sandra - March 22, 2023, 10:57 p.m.

I only made the patties. The recipe Is very good with lots of healthy ingreditents. I always make them ahead and freeze them so I can later have them ready to go when I want some burgers.

PUL Team - March 23, 2023, 6:58 a.m.

A lovely idea, Sandra, thank you 🤗

Elsa - Feb. 23, 2023, 11:59 a.m.

Thank you for this recipe, i'm planning to do it for 25 persons tomorrow, and I was wondering if I could cook these patties in the oven... what do you think?

PUL Team - Feb. 23, 2023, 7:02 p.m.

Hey Elsa, mmm so many burgers! We haven't tested this recipe in the oven but imagine you could. For example, perhaps 375°F for 10 minutes per side is a starting point. We'd suggest keeping a closer eye on the patties though since every oven tends to be different. If the burger patties don't get as crispy as desired, you could also broil them shortly 😊

Klara - Jan. 15, 2023, 11:37 a.m.

My favourite burgers to make for my family. I add the sauteed mushrooms ( pepper) to my burger mix, so delicious! I usually batch make these and keep them in the freezer!

PUL Team - Jan. 16, 2023, 12:12 a.m.

So thrilled it the burger is being enjoyed, Klara, and love the addition of mushrooms!

Lauralyn - June 12, 2022, 2:54 a.m.

These were the my best burgers I've ever had! The flavor combination between the burgers, mushroom and pepper mixture, homemade coleslaw, and spicy mayo was incredible. Thank you for this lovely recipe. It was well worth making!

PUL Team - June 15, 2022, 6:57 a.m.

Such a massive compliment, Lauralyn! Thank YOU for the glowing review 🤗

Luci - July 26, 2021, 6:31 a.m.

Delicious and fairly easy to make! The burger patties had a really sticky consistency, but they formed just fine and easily flipped. Next time, I’ll cook a bit lower and slower, so the inside gets more cooked. Didn’t make the Cajun Mayo, but made the mushroom/red bell topping. Love this burger!

PUL Team - July 27, 2021, 7:43 p.m.

So glad you enjoyed the burgers, Luci! To help with the sticky consistency when forming the patties, using a touch of flour or wet hands may help a bit ☺️

Aida - June 27, 2021, 5:37 p.m.

I made these and they turned out AMAZING
Your recipes make the vegan transition so easy!

Zee - June 12, 2021, 1:08 a.m.

Is there a substitute for pinto beans? Can I use kidney or cannellini beans instead? Will the quantity remain the same?

PUL Team - June 13, 2021, 12:10 a.m.

Hello Zee, lovely question! You can substitute the pinto beans for another cooked bean of your choice, such as kidney beans, or cooked brown lentils. The quantity will remain the same 🙂

Hagit - June 8, 2021, 7:25 p.m.

Hi, looks so good! is there an optional substitute for the flaxseeds?

PUL Team - June 9, 2021, 6:17 a.m.

Hey there, Hagit, that's a great question! The ground flax seeds in water form a gel that helps act as a glue so the burger patties bind together. You could substitute the ground flax seeds for another ground seed, such as chia seeds, as ground chia seeds work well as a substitute!

Alternatively, you could experiment with some other ingredients that act as a binder, such as mashed banana, apple sauce, or a commercial egg replacer. These may impact the patty as they're generally sweeter in taste though. Let us know how it goes if you give any of these ideas a try 😃

Chris - May 18, 2021, 12:55 p.m.

Amazing recipe! 😋

If I'm not mistaken, the amount of cooked pinto beans should be somewhere around 240 g.

PUL Team - May 22, 2021, 5:27 a.m.

So glad you enjoyed the recipe, Chris, and great catch! Thank you for pointing that out and bearing with any confusion the initial number had. It's been updated ✨☺️