Grind the chickpeas, avocado, lemon juice, pepita or sunflower seeds in a food processor and transfer to a bowl. If you don't have a food processor you can mash them with a potato masher and chop the seeds with a knife.
Add the curry, cumin, coriander, and salt & pepper to the mixture and stir until well blended.
Spread on bread and top with greens and tomato for a sandwich.