Step 1
Lay two pieces of foil on a flat surface. Place five spears of asparagus on foil and top with a fillet of salmon, 1 tablespoon butter, and two slices lemon. Loosely wrap, then repeat with remaining ingredients until you have four packets total.
Step 2
Heat grill on high. Add foil packets to grill and grill until salmon is cooked through and asparagus is tender, about 10 minutes.
Step 3
Garnish with dill and serve.
