Black Eyed Basmati Salad

Name: Black-Eyed Basmati Salad
Ingredients: 5 cups water, divided; 1/2 teaspoon kosher salt; 1/2 cup dry black-eyed peas; 1/2 cup basmati rice; 1 teaspoon minced garlic; 3 tablespoons Dijon mustard, preferably country style; 4 tablespoons apple cider vinegar, best quality; 1 tablespoon honey; 1 tablespoon minced shallot; 1 tablespoon finely chopped cilantro leaves; 1 teaspoon freshly cracked black pepper; 1/4 cup diced (1/4-inch) red onion; 1/2 cup seeded and diced (1/4-inch) red bell pepper; 1/3 cup sliced Spanish olives