Prepare all the burger ingredients apart from the meat:
– Prepare 1 avocado, slice fairly thickly and drizzle with lime juice. – Cut 50 g Cheddar cheese into thin shavings with a vegetable peeler. – Prepare 1 onion and slice thinly. – Rinse and dry 8 leaves fresh spinach. – Pick the coriander (cilantro) leaves off the stalks.