01 - Preheat oven to 400°F. Line a baking sheet with parchment paper.
02 - Brush cut sides of eggplant halves with 1 tablespoon olive oil. Place cut side up on prepared baking sheet. Season with salt and pepper. Roast for 25 to 30 minutes until flesh is tender.
03 - Bring vegetable broth to a boil in a small saucepan. Stir in couscous, cover, and remove from heat. Let stand for 5 minutes, then fluff with a fork.
04 - Heat 2 tablespoons olive oil in a large skillet over medium heat. Add onion and sauté for 2 minutes. Add red bell pepper, zucchini, and garlic; cook for 4 to 5 minutes until softened.
05 - Stir in tomatoes, cumin, paprika, oregano, salt, and pepper. Cook for 3 minutes. Remove from heat.
06 - Scoop out roasted eggplant flesh leaving a 1/2-inch border. Chop the flesh and add to the skillet with vegetables.
07 - Add cooked couscous, parsley, mint, and lemon juice to the vegetable mixture. Mix thoroughly and adjust seasoning as needed.
08 - Spoon couscous mixture evenly into roasted eggplant shells. Sprinkle with feta cheese.
09 - Return stuffed eggplants to oven and bake for 10 minutes until heated through and cheese is lightly golden.
10 - Transfer to serving plates and garnish with additional fresh herbs if desired. Serve immediately.