Oven Roasted Tomato Dolmas with Spiced Eggplant and Couscous Filling

Name: Oven Roasted Tomato Dolmas with Spiced Eggplant and Couscous Filling
Ingredients: 10 vine-ripened tomatoes; Salt; 1 cup chicken broth (or water for vegetarian option); 1 cup couscous; 4 tablespoons olive oil; 1 medium eggplant, ends trimmed, peeled, finely chopped; 1 small green pepper, stemmed, seeded, ribs removed, finely diced; 2 shallots, finely chopped; 1 garlic clove, minced; 1 tablespoon harissa; 1 teaspoon ground cumin; 1/2 teaspoon ground cinnamon; 1/4 cup chopped fresh mint leaves, plus additional whole leaves for garnish; 3/4 pound feta cheese, crumbled; Freshly ground black pepper; Freshly squeezed lemon juice