Roasted Cauliflower Couscous Salad

Name: Roasted Cauliflower Couscous Salad
Prep time: 10 min
Cook time: 30 min
Total time: 40 min
Cuisine: American
Ingredients: 1 head cauliflower (cut in florets); 1 15-ounce can chickpeas (drained and rinsed); 2 tablespoons olive oil; 1 tablespoon smoked paprika; 1 teaspoon garlic powder; 1 teaspoon onion powder; 1 teaspoon chili powder; 1/2 teaspoon pepper; 1/4 teaspoon salt; 1 tablespoon olive oil; 1 1/3 cups pearl couscous (dry); 1/2 teaspoon garlic powder; 1/2 teaspoon onion powder; 1/2 teaspoon dried parsley; 1/4 teaspoon pepper; 1 3/4 cup broth (I used vegan chicken broth); salt (if needed); 1/2 cup non-dairy yogurt (unsweetened); 1 lemon (juiced); 2 tablespoons chives (chopped); 1-2 cloves garlic (minced); 1/4 teaspoon pepper (plus more to taste); salt (to taste); 4 cups arugula; lemon wedges (for serving); chives (for serving)