Can be prepared in 45 minutes or less.

Ingredients

　　4 hard-boiled large eggs, peeled and chopped

　　2 tablespoons mayonnaise

　　2 tablespoons sour cream

　　2 tablespoons minced fresh herbs such as parsley, chives, and/or  tarragon

　　1 scallion, minced

　　2 teaspoons fresh lemon juice, or to taste

　　1 teaspoon Dijon mustard

　　a pinch freshly grated lemon zest

　　8 slices whole-grain bread

Step 1

Step 2