Tomatoey black eyed pea gratin

Name: Tomatoey black eyed pea gratin
Ingredients: For the beans; 2 cups dried black eyed peas; 1 red onion, diced; 2 cloves garlic, minced; 2 tablespoons olive oil; 6 halves sun dried tomatoes (dried, not in oil); 4 cups vegetable stock; 1/4 teaspoon red pepper flakes; For the topping; 1/2 cup bread crumbs; 1/4 cup grated pecorino romano cheese; 6 cherry tomatoes, chopped; 6 basil leaves, chopped; 6 chives, chopped; 1 tablespoon olive oil