2 15-ounce cans white beans, rinsed and drained Juice of half a lemon Salt and freshly ground black pepper, to taste 8 slices multigrain bread, toasted 1 small red onion, thinly sliced 1 cucumber, thinly sliced 2 avocados, pitted and thinly sliced 5 ounces arugula or sprouts

Combine the beans and lemon juice in a medium bowl. Roughly mash until it comes together but is still a little chunky. Season with salt and pepper to taste.
Divide the bean mixture among four slices of the bread, spreading in a single layer. Top each with some red onion, sliced cucumber, avocado, and arugula or sprouts. Season with additional salt and pepper. Top with the remaining slices of bread and serve.