Preheat your oven to 400°F (204°C) or preheat your grill to medium-high heat
Lay out two large pieces of aluminum foil (about 12-15 inches long). Place a salmon fillet in the center of each piece of foil, and distribute the asparagus around the salmon.
In a small saucepan over medium heat, melt the butter. Once melted, add the honey, minced garlic, and fresh herbs. Stir until well combined and remove from heat.
Pour the honey butter glaze evenly over the salmon fillets and asparagus. Sprinkle with salt to taste.
Fold the foil over the salmon and asparagus, sealing the edges to create a foil pack. Leave a little space for heat circulation inside.
Bake in the preheated oven for 15-20 minutes, or grill on medium-high heat for about 12-15 minutes. Be careful not to overcook the salmon. The salmon is done when it flakes easily with a fork.
Carefully open the foil packs (watch out for steam), check the salmon for doneness, and if desired, broil for 2-3 minutes to get a bit more color and crispiness.
Serve the salmon and asparagus foil packs garnished with lemon slices and additional fresh herbs if desired. Enjoy this quick, tasty, and nutritious meal!
Notes
Foil: Double up on the foil to prevent any leaks or tears that could let out all that lovely honey butter sauce. Trust me, you don't want to lose any of that goodness!
Salmon: Don't overcook your salmon - it can go from perfect to dry pretty quickly. Check it a little earlier than you think you need to. You're aiming for a nice flaky texture.
Asparagus: Try to choose asparagus spears that are similar in size so they all cook at the same rate. Those thin ones can get overcooked while you're waiting for the thicker ones to get done.
Herbs: If you're using fresh herbs, add some of them towards the end of cooking or even after the packs come out of the oven. This will give you a nice burst of fresh flavor.
Variation: Feel free to play around with this recipe. You could add some lemon slices for extra tang, sprinkle in some chili flakes for a bit of heat, or swap out the asparagus for your favorite veggies.
Make-ahead: If you're pressed for time, you can assemble these packs ahead of time and store them in the fridge. When dinner time rolls around, just pop them in the oven and you're good to go!