Preheat broiler to high with oven rack in middle of oven. Place bell pepper, chile, and garlic cloves on a rimmed baking sheet. Broil, turning occasionally, until bell pepper and chile are charred and garlic is softened, removing chile after about 6 minutes, garlic after about 10 minutes, and bell pepper after about 14 minutes. Transfer bell pepper and chile to a bowl; cover tightly with plastic wrap, and let stand 10 minutes. Peel, stem, and seed bell pepper and chile. Peel garlic cloves.
Place bell pepper, chile, garlic, 2 tablespoons oil, lemon juice, Aleppo pepper, cumin, salt, and coriander in a food processor. Process until smooth, about 30 seconds.
Spoon hummus into a serving bowl. Spoon harissa over hummus; drizzle with remaining 1 tablespoon oil, and sprinkle with parsley. Serve hummus with Fresh and Roasted Vegetables.