Preheat your oven to 400°F (200°C).

In a medium-sized bowl, combine grated Parmesan cheese, breadcrumbs, minced garlic, melted butter, olive oil, lemon juice, salt, and pepper. Mix well until resembling wet sand.

Line a baking sheet with parchment paper. Place your halibut fillets on the baking sheet, spaced apart. Pat the fillets dry with a paper towel.

Generously press the prepared crust onto each halibut fillet, aiming for a thickness of about 1/4 inch.

Bake for 12-15 minutes, until the crust is golden brown and the fish flakes easily with a fork.

Remove from the oven, garnish with parsley, and serve immediately, perhaps with lemon wedges.