Place beans in a blender or food processor and pulse until mashed or mash with a potato masher. Remove and place in a mixing bowl. Add all remaining ingredients except the bread and lettuce. Mix thoroughly. Spread an equal amount of chickpea salad spread on 4 slices of the bread. Top each with a lettuce leaf and remaining bread slices.
Per serving - 393 calories, 16 g fat (36% calories from fat), 12 g protein, 52 g carbohydrate, 9 g fiber, 0 mg cholesterol, 590 mg sodium