Preheat grill to medium-high temperature (or use oven and preheat to 400 degrees F).  Grill salmon on each side for approximately 3 minutes; only flipping once.  Set aside and loosely cover.

Slice zucchini lengthwise and drizzle with a little oil.  Season with salt and pepper to taste.  Place on foil on the grill and grill until browned cooked through.  

Prepare couscous as directed on package but a teaspoon of zest from the lemon as well as 1-2 teaspoons of fresh lemon juice.  While couscous cooks, chop mango into cubes; add to couscous when it has finished cooking.  

Serve couscous with salmon and grilled zucchini.