01 - Combine blueberries, balsamic vinegar, honey, lemon juice, Dijon mustard, salt, and pepper in small saucepan. Bring to simmer over medium heat, stirring occasionally, until blueberries burst and sauce thickens, about 8-10 minutes. Mash berries gently with spoon. Remove from heat and strain if smoother glaze is desired. Set aside.
02 - Preheat oven to 400°F. Pat salmon fillets dry and season both sides with salt and pepper. Heat olive oil in oven-safe skillet over medium-high heat. Sear salmon fillets flesh side down for 2-3 minutes until golden.
03 - Flip fillets, brush generously with blueberry glaze, and transfer skillet to oven. Bake for 8-10 minutes until salmon flakes easily with fork.
04 - Bring vegetable broth and olive oil to boil in medium saucepan. Stir in couscous, cover, and remove from heat. Let sit for 5 minutes. Fluff couscous with fork and stir in lemon zest, lemon juice, parsley, dill, salt, and pepper.
05 - Divide couscous among plates. Top each serving with glazed salmon fillet. Spoon additional blueberry glaze over salmon if desired. Garnish with extra herbs and lemon wedges.