First, prepare all the ingredients: mash the avocado, slice the white cheese and cucumber, and rinse the lettuce and arugula. You can cut the mixed greens into thin strips or serve as full leaves, as you prefer.
To assemble each sandwich, put a base of mashed avocado on the bread, then make layers with the lettuce, arugula, cucumber slices, blackberries, and white cheese. Top with the bread slice with avocado and you got yourself a refreshing summer sandwich.
To preserve in the fridge and prevent the bread from drying, put on a plate and cover with a damp cloth.
