1. Place farro in a large saucepan, and cover with water to 2 inches above farro. Bring to a boil. Cover, reduce heat, and simmer for 23 minutes or until desired degree of doneness.
2. Add green peas to pan with farro, and cook for 2 minutes or until crisp-tender. Drain and rinse farro mixture with cold water; drain.
3. Combine farro mixture, 1/2 teaspoon salt, and 1/4 teaspoon black pepper in a large bowl. Add the watermelon cubes and 1 cup chopped parsley, and toss gently to combine. Top salad with Romano cheese.