In a 1-quart microwave-safe casserole stir together broth, carrot, sweet pepper, onion powder, garlic powder, and bottled hot pepper sauce. Micro-cook, covered, on 100 percent power (high) for 2 to 3 minutes or until carrots are just tender, stirring once. Stir in spinach, couscous, and lemon juice.
Cook, covered, on high for 1 to 1-1/2 minutes more or until spinach is just wilted and couscous has absorbed liquid. Stir in tomatoes, Parmesan, and cilantro. Sprinkle with mozzarella cheese. Let stand, covered, 1 minute or until cheese is melted. Makes 2 main-dish or 4 side-dish servings.