Preheat oven to 400F. Place halibut fillets in a large baking dish or on a parchment-lined baking sheet. Brush fish with approx. 1 Tbsp of olive oil.
In a small bowl, combine all the ingredients (except lemon) for the herb topping. Stir together well. Spoon mixture onto fillets. Gently press the mixture down so that it sticks.
Place cod in the oven and bake for 15 minutes. If your cod is on the thinner side, you may choose to cook it about 12 minutes. The fish should be opaque and flake easily when done! Top with a squeeze of lemon juice.