Preheat your oven to 190°C/170°C(fan)/375°F/Gas 5.
In a large bowl, crack in 4 Eggs and add 1 pinch Sea salt and black pepper and 1 tablespoon Whole milk. Whisk well.
Heat 0.5 tablespoon Butter in a pan on a gentle heat and add the eggs. Gently cook, stirring constantly for a couple of minutes until the eggs are scrambled. Set aside.
Put 180 g Tortilla chips in an ovenproof dish and then top with the cooked eggs, 400 g Black beans, 6 tablespoon Salsa and 60 g Mature cheddar and put into the oven for around 10 minutes until the cheese melts.
Meanwhile, put 2 Avocado into a bowl with 2 tablespoon Chipotle en adobo, juice of 1 Lime and 1 handful Fresh coriander (cilantro) and mash until desired consistency.
Spoon on top of cooked nachos with 6 tablespoon Salsa and serve.