- Preheat the oven to 425°F. Set two large pieces of parchment paper on a baking tray. 
- Cut fish into 2 portions.  Set a piece of cod onto each piece of paper. Place half of the asparagus right on top of each piece of fish. Do the same with the Spring onions. 
- Top each piece with equal amounts of basil, garlic, ginger, soy sauce, and olive oil. Crack some black pepper if you like. 
- Close up the parchment paper to make two little packages. 
- Bake in the oven for 15 minutes or until fish is cooked through and asparagus is tender (but not overcooked!). 
- Transfer your fish and some of the sauce to a plate and toss the parchment paper in the garbage.  Serve and enjoy.