Ultimate Lion’s Mane Steak Sandwich

Lion’s Mane Steak Sandwich with Chimichurri

A bold, flavourful twist on the classic steak sandwich, featuring zesty chimichurri sauce, tender Lion’s Mane steak, and lightly toasted buns.

Ingredients (serves 2)

• Lion’s Mane steak x 2 

• 1 tbsp olive oil

• 2 sandwich rolls or slices of bread

• 1 small onion, thinly sliced

• 2-4 slices of cheese (optional, your choice)

• Your favourite sandwich condiments (mustard, mayo, aioli, etc.)

• Fresh greens (lettuce, rocket, or spinach)

For the chimichurri sauce

• 25 g fresh parsley, finely chopped

• 10 g fresh coriander, chopped (optional)

• 3 garlic cloves, minced

• 30 ml red wine vinegar

• ½ tsp red chilli flakes (adjust to taste)

• ½ tsp salt

• ¼ tsp black pepper

• 80 ml extra virgin olive oil

• 5 ml lemon juice (optional)

Instructions

1. Make the chimichurri sauce:

• Mix parsley, coriander (if using) and minced garlic in a small bowl.

• Stir in red wine vinegar, chilli flakes, salt and black pepper.

• Slowly whisk in the olive oil until combined.

• Add lemon juice if desired, then set aside to let flavours meld.

2. Prep the buns:

• Slice the rolls and lightly toast them under a grill or in a pan for extra crunch.

3. Cook the Lion’s Mane steak:

• Heat 1 tbsp olive oil in a frying pan over medium heat.

• Add the prepared Lion’s Mane steak straight from the fridge.

• Sear for 2 minutes on each side, then transfer to a fan oven at 180 °C for 7 minutes.

4. Sauté the onions:

• In the same pan (or a separate one), lightly sauté the onion until soft and caramelised.

5. Assemble the sandwich:

• Spread chimichurri sauce and any other condiments on the toasted buns.

• Layer the cooked Lion’s Mane steak, sautéed onions, cheese (if using), and fresh greens.

• Close the sandwich, press gently, and serve immediately.