Preheat oven to 400 degrees F. Line baking sheet with parchment paper or foil, if desired.
Cook couscous as directed on package; set aside covered.
In a mixing bowl, add olive oil, minced garlic, and all seasonings (through cayenne); blend well. Dip each piece of fish into mixture and place onto prepared baking sheet. Pour remaining seasoning mixture over the fish.
Toss asparagus with additional olive oil and place onto a separate baking sheet. Place both trays into oven and bake for 10 minutes or until fish flakes easily with a fork. (Be sure to keep a watch on the asparagus if they are thin because they will cook fast!)
Season couscous with butter, salt, pepper, and nutmeg.
Serve fish with couscous, asparagus and sliced plums on the side. (Serving size: 3-4 ounce fish, 3/4 cup couscous, 1 plum, 3-4 asparagus)