Ripe avocados are mashed with chickpeas and cumin for a satisfying and slightly exotic filling.
1. Rinse and drain the chickpeas. Halve and pit the avocados. To a medium bowl, add flesh from avocados, oil, cumin, garlic, and lemon juice and mash with fork until mostly smooth. Add chickpeas and roughly mash with fork. Thinly slice the green onions and fold into avocado mixture. Season with salt and pepper.
2. Cut the crusts from the bread. Divide the spinach among 6 bread slices. Top with avocado and chickpea mixture. Top with remaining bread slices. Cut each sandwich corner to corner to form 4 triangles.