Mexican steak burrito

INGREDIENTS

• 2 small ripe avocados
• 1 garlic
• ½ small onion
• 1 small red chilli
• 1 lime
• salt and freshly ground black pepper
• 2 medium ripe tomatoes
• ½ onion
• small handful fresh coriander
• 2 tbsp vegetable oil
• 1 small onion
• 350g/12oz rump
• ½ red or green chilli
• dash Worcestershire sauce
• dash Tabasco
• pinch cayenne pepper
• 2 ready-made soft flour tortillas
• 1 Little Gem lettuce
• 100g/3½oz rice
• 75g/2½oz cheddar
• 100ml/3½fl oz soured cream