Summer Rice Salad

Ingredients

• 2 cups water, plus more, to taste
• 1 cup white rice
• 6 eggs
• 1 (10-ounce) package frozen peas, thawed
• 1 cup celery, chopped
• 1/4 cup onion, chopped
• 1 (4-ounce) jar diced pimientos
• 1 cup mayonnaise
• 1 teaspoon prepared mustard
• 1 tablespoon lemon juice
• 1/4 cup sweet pickle relish
• 9 ounces canned solid white tuna packed in water, drained
• 1/4 teaspoon dried dill
• 1 teaspoon salt
• 1/8 teaspoon pepper
• fresh dill, optional, to taste, chopped, for garnish