Ingredients

  • Prep: 15 min
  • Wait: 45 min
  • Total: 60 min

For the patties

3¼
oz
onions
1
garlic clove(s)
8¾
oz
kidney beans
2
oz
rolled oats
1
oz
flour
(e.g. whole wheat)
1
tsp
vegetable broth
1
tbsp
soy sauce
1
tbsp
mustard
1
tsp
sambal oelek
2
tsp
paprika (hot)
1
tsp
cumin
¼
tsp
salt

For the toppings

5¼
oz
button mushrooms
5¼
oz
spinach
3
onions
1
garlic clove(s)
lettuce leaves
4
burger buns
3
tbsp
soy sauce
5¼
oz
Guacamole
mustard, ketchup, vegan mayo
½
tsp
sugar
(brown)
Ingredients for the burger, seen from above.
Step 1
5¼
oz
button mushrooms
3¼
oz
onions
(diced, for the patties)
1
onion(s)
(diced)
2
onions
(half rings)
3
garlic cloves

Prepare the ingredients:

  • Slice the mushrooms.

  • Dice the onions for the patties.

  • Dice the onions for the spinach-mushroom mix.

  • Cut the onions for the caramelized onions into half rings.

  • Dice the garlic cloves.

Vegan burger, step 1: preparation
Step 2
8¾
oz
kidney beans
3¼
oz
onions
(!)
1
garlic clove
(!)
2
oz
rolled oats
1
oz
flour
1
tbsp
soy sauce
(!)
1
tbsp
mustard
1
tsp
sambal oelek
2
tsp
paprika (hot)
1
tsp
cumin
1
tsp
vegetable broth
¼
tsp
salt

Patty mixture

  • Drain the liquid from the kidney beans, but don't rinse them with water. Mash the beans in a shallow container with a fork or potato masher.

  • Mix all the ingredients for this step.

Vegan burger, step 2: making the patty mixture
Step 3
5¼
oz
button mushrooms
2
tbsp
soy sauce
(!)
5¼
oz
spinach
1
onion
(diced)

Mushroom-spinach mix

  • Fry the mushrooms and deglaze with soy sauce.

  • Add the onions to the mushrooms and sauté briefly until translucent.

  • Then add the garlic. After about 1 min, fold in the spinach. As soon as it has wilted, set aside.

Vegan burger, step 3: mushroom-spinach topping
Step 4
2
onions
(!)
2
tbsp
soy sauce
(!)
½
tsp
sugar
(brown)

Caramelized onions

  • Fry the onions and deglaze with soy sauce.

  • Then sprinkle in the sugar and wait until it has caramelized.

Vegan burger, step 4: caramelized onions
Step 5
4
burger buns

Frying the patties

  • Shape four patties from the mixture.

  • Fry the patties over medium heat for 8 min on each side.

Warm the burger buns in the oven for a few minutes.

Vegan burger, step 5: frying the patties

Tips

About the ingredients:

  • The perfect side for burgers is, of course, fries. In my recipe for sweet potato fries I'll show you how to make them extra crispy!

Ingredients marked with "!":

  • Some ingredients in the individual steps are marked with "!". This shows you that the ingredient appears in several places in the recipe, and that you should only use the stated amount for that particular step.

Nutrition

estimated per serving

  • 932kcal
  • 36.7 gProtein
  • 133.5 gCarbs
  • 21.1 gFat

Calculated from all ingredients, including the sides. Values vary depending on the product, the size of the vegetables and how you prepare them.

Cost Test phase

estimated per serving

about €3.00

What goes into the price

  • Guacamole€0.90
  • burger buns€0.49
  • kidney beans€0.44
  • button mushrooms€0.34
  • spinach€0.30
  • onions€0.21
  • soy sauce€0.18
  • rolled oats€0.04
  • garlic clove€0.02
  • mustard€0.02
  • sambal oelek€0.02
  • flour€0.01
  • sugar< €0.01
  • vegetable broth< €0.01

Total €2.98 per serving, rounded to about €3.00. Not counted: paprika, cumin, salt.

This section is still in a test phase: a rough estimate based on conventional German discount-supermarket prices (as of September 2026). Only the amounts used are counted, excluding salt, pepper and spices.

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