Bring vegetable broth to a boil in a small saucepan and add pearl couscous.
Reduce heat to low, cover, and simmer for 10 minutes or until liquid is absorbed; fluff with a fork and let cool.
In a large bowl, combine the cooled couscous with diced cucumber, red onion, and pomegranate seeds.
Whisk together Greek yogurt, chopped mint, lemon juice, grated garlic, and honey in a small bowl until smooth.
Heat a non-stick skillet over medium-high heat with olive oil.
Season halloumi slices with oregano and grill for 2 to 3 minutes per side until deeply golden and crispy.
Toss the couscous mixture with half of the mint yogurt dressing.
Divide the salad into bowls and top with the warm grilled halloumi slices.
Drizzle the remaining dressing over the cheese and garnish with pine nuts and fresh mint.