Classic Egg Salad

Ingredients (9)

• 3 tablespoons mayonnaise
• 1-1/2 teaspoons prepared mustard
• 1/8 teaspoon salt
• 1/8 teaspoon pepper
• 1/8 teaspoon lemon juice
• 3 hard-boiled large eggs, coarsely chopped
• 1 tablespoon minced green onion
• 2 slices bread
• Diced tomato, optional