Preheat grill to medium high heat and prepare the grilling ingredients: slice sausage and vegetables and arrange on a grill pan.
Drizzle the ingredients with olive oil, season with salt and pepper, and sprinkle minced garlic, chives and oregano on top.
Grill sausage and veggies on the hot grill for about 10-12 minutes, tossing everything around halfway through to make sure it grills evenly.
While the sausage and veggies are grilling, prepare couscous as directed.
Divide cooked couscous and grilled sausage-veggie into four bowls and serve hot; garnish with additional herbs and a drizzle of olive oil if desired.