Arroz con Gandules

Name: Arroz con Gandules
Ingredients: 2 tablespoons corn oil; 1 (6 ounce) ham steak, cut into small pieces; 1 large onion, diced; 1/2 green bell pepper, cut into small pieces; 1 (15 ounce) can gandules (pigeon peas), drained and rinsed; 1/2 (8 ounce) can tomato sauce (such as Goya®); 5 tablespoons sofrito; 3 tablespoons adobo seasoning; 2 tablespoons olive brine; 5 pitted green olives; 1 (1.41 ounce) package sazon seasoning; 2 cups water; 1 cup white rice