Prepare the couscous: Bring 1 cup of water to a boil in a medium pot. Stir in the couscous, cover, and remove from heat. Let it sit for 5 minutes—fluff with a fork before serving.
Preheat the oven: Set it to broil and let it preheat for about 5 minutes.
Season the asparagus: In a mixing bowl, toss the asparagus florets with 1 tablespoon of olive oil, salt, and pepper until evenly coated.
Prepare the salmon: Line a baking sheet or roasting pan with foil. Drizzle 1 tablespoon of olive oil and the lemon juice over the salmon fillets. Season them with salt and pepper on both sides.
Roast the vegetables and salmon: Place the salmon fillets skin-side down in the center of the roasting pan. Arrange the asparagus florets around the salmon. Broil in the oven for 10-12 minutes, or until the salmon flakes easily with a fork and the asparagus is tender but still slightly crisp. Adjust the broiling time based on your desired level of doneness for the salmon.
Assemble and serve: Divide the cooked couscous between two plates. Top each with a salmon fillet and a generous serving of roasted asparagus.
Notes
Leftovers: Store in an airtight container in the refrigerator for up to 3 days.
Substitutions: You can swap asparagus for another vegetable like Brussels sprouts or broccoli.
No Couscous: You can substitute couscous with rice, quinoa, or your favorite grain.