
Portobello Mushroom Burger
Rich, indulgent and vegetarian
This gourmet portobello veggie burger recipe is the perfect autumn treat, full of earthy, warm flavours and topped with our buttery-tasting Brioche Burger Buns, for an autumnal delight.
For the mushroom burger
- 6 St Pierre Brioche Burger Buns
- 350g black beans, cooked
- 250g Portobello mushrooms, finely diced
- 70g fresh broccoli, chopped
- 2 tbsp minced garlic
- 75g red onion, finely diced
- 1 tbsp vegetarian Worcestershire sauce
- 3 eggs, beaten
- 25g vegetarian Parmesan cheese, grated
- 25g breadcrumbs
- 1 tbsp olive oil
For the toppings
- 6 cheddar cheese slices
- Lettuce leaves to serve
- 2-3 tomatoes thinly sliced
- 1 red onion, thinly sliced
- Blue cheese sauce (optional)
- Seasoning
- In a large bowl, mix the black beans, chopped mushrooms, broccoli, garlic, onion and Worcestershire sauce
- Add the beaten eggs, grated Parmesan cheese and breadcrumbs into a bowl and mix gently to incorporate all the ingredients
- Shape the mixture into six burger pucks – if they don’t hold add more breadcrumbs – and cook in a pan with a little bit of olive oil on a medium heat for 3-5 mins each side
- Add the cheddar cheese slice on top of the burger towards the end of cooking to melt on top
- On the bottom of the Brioche Burger Bun, add a couple of pieces of torn lettuce, some slices of tomato and red onion
- Then place a mushroom burger with melted cheese on top
- Add blue cheese sauce on top of the burger if desired, and then place Brioche Burger Bun top on and enjoy
Bon appétit!

4 Brioche Burger Buns
Give your burger the luxury treatment. St Pierre Brioche Burger Buns (also available in a pack of 6 buns or as Seeded Burger Buns) are ready sliced so you can start enjoying them even sooner. Deliciously decadent, gorgeously golden and sumptuously soft, try our brioche buns to upgrade your next burger night.

6 Brioche Buns
Pre-sliced, deliciously soft brioche buns, ready to be filled with your favourite burger, our St Pierre Brioche Buns are made for you to take your time. Golden like a Parisian sunset with a plump texture to perfectly hold your filling together and a shiny glaze on top, this gently sweet brioche bun tastes great with every type of ingredient to take your meals to Paris.