Italian Hoagie Salad

Ingredients

• ounces sub roll, preferably with sesame seeds, cut into ¾-inch pieces
• tablespoons extra-virgin olive oil, divided
• teaspoon table salt, divided
• cherry pepper, stemmed, plus 2 tablespoons brine
• tablespoons mayonnaise
• teaspoon dried oregano
• romaine lettuce heart , sliced ¼ inch thick
• ounces tomato, halved
• ounces meat , cut into ¼-inch ribbons
• ounces provolone cheese, cut into ¼-inch ribbons
• red onion, rinsed