Place avocado halves in a bowl, fork through to create a rustic mash

Add lemon juice, crumbled feta, chopped parsley, dill and tomato. Mix well

Bring a medium shallow saucepan of water and vinegar to the boil. Break egg into a small dish and keep aside

Reduce the heat and bring water to a simmer. Carefully slide in the egg

Break remaining eggs into small dish one by one, and add to water

Allow 3-4 minutes for poached eggs with firm whites and soft runny yolks. Cook longer for a firmer egg. Remove with a slotted spoon, rest on a paper towel to absorb any excess water

Smear avocado smash on toasted sourdough and top with poached eggs