Beef burger with mushrooms and melted cheese Recipe | Beef + Lamb New Zealand

Ingredients

• 500g Quality Mark beef mince
• 1 cup panko breadcrumbs
• 1 onion
• 1 garlic clove
• 1 egg
• 1 tsp mixed herbs
• 1 Tbsp Worcestershire sauce
• 1 tsp chilli flakes i
• 1/2 tsp salt and pepper
• 2 Tbsp extra virgin olive oil
• 2 Tbsp butter
• 2 red onions
• 1 cup of mushrooms i
• 1 cup blue vein cheese i
• 4 hamburger buns
• 3 Tbsp aioli
• lettuce leaves