Preheat oven to 350 degrees Fahrenheit.
Place the bread on a baking sheet and toast in the oven for 5 minutes.
While the bread is toasting, make the dressing. In a small bowl, whisk together the oil, vinegar, mustard and honey.
In a large bowl, combine the arugula, shallot, white beans, peaches and bread. Add dressing and toss.