Preheat your oven to 400°F and line a large baking sheet with parchment paper.
Place the Goldfish crackers in a sealed bag and use a rolling pin to crush them into fine crumbs.
In a shallow bowl, whisk the egg until smooth to create an egg wash.
In a separate shallow bowl, combine the crushed Goldfish, grated Parmesan, and garlic powder.
Pat the cod fillets dry with a paper towel and season both sides with sea salt and black pepper.
Dip each cod fillet into the egg wash, then press firmly into the cracker mixture until the fish is completely and evenly coated.
Arrange the crusted fish on one side of the prepared baking sheet.
Toss the asparagus spears with olive oil on the other side of the sheet, spreading them out in a single layer.
Bake for 12 to 15 minutes, or until the fish is opaque and flakes easily with a fork and the crust is golden brown.