This four-serving cod dinner has more preparation than its short baking stage suggests. The 50-minute recipe divides zucchini between ribbons and purée, and peas between the purée and a whole-pea finish. Four 150 g cod fillets bake under herb crumbs while the green base stays warm. Sorting those portions before cooking prevents an easy mistake: blending an ingredient you meant to save for the plate.
Herb-Crusted Cod with Zucchini-Pea Purée makes 4 servings, with 50 min estimated total time. View the standalone recipe page.
Separate the vegetable and lemon portions
Heat the oven to 400°F / 200°C. Shave 150 g of the zucchini into long ribbons and finely shave the fennel. Toss them with 15 g lemon juice, 10 g olive oil and 1 g salt. Thin, flexible slices soften in this dressing more readily than thick chunks, so take care with the cutting rather than expecting the lemon to correct uneven pieces.
Reserve the remaining 450 g zucchini for the saucepan. Divide the peas into 150 g for blending and 50 g for finishing. Keep the second 15 g lemon juice, butter and remaining oil portions ready. Use a guard if working with a mandoline, or choose a peeler and knife for controlled cuts.
Cook the purée vegetables with little added water
Chop the reserved zucchini and place in a saucepan with 60 ml water and 1 g salt. Cover and simmer for 8–10 minutes, adding 150 g peas during the final 3 minutes. The limited liquid is deliberate: the vegetables need enough moisture to cook, but this is not a large pot of soup that must later be strained.
Blend the tender vegetables and their small amount of cooking liquid with the butter and remaining lemon juice. Follow your blender's instructions for hot food and allow steam to escape safely; do not seal hot liquid into a device that cannot vent. Return the purée to the saucepan and keep warm over very low heat.
Press a modest layer of crumbs onto dry fish
Mix the 35 g panko, chopped parsley and basil, 20 g olive oil and 1 g salt. The oil should be distributed throughout rather than leaving some crumbs completely dry and others in greasy clumps. Set this mixture beside the baking dish before handling the cod so you can coat the four pieces efficiently.
Pat the fillets dry and arrange them in the dish with the remaining 5 g oil. Season with the final 2 g salt and pepper, then press the herb crumbs onto their tops. A reasonably even layer adheres better than a steep mound. Handle the fish gently; once cooked, its flakes will be more fragile during transfer.
Check the cod while finishing the whole peas
Bake for 12–16 minutes depending on thickness. The crumbs should be lightly golden, and the fish must reach 145°F / 63°C in the thickest part. Start checking thinner fillets before assuming all four require the longest time. Position the thermometer in the flesh rather than measuring only the hot crumb coating.
During baking, boil the reserved 50 g peas in a small pan of water for 3 minutes, then drain. Stir the warm purée occasionally to prevent it catching on the base. If the fish is ready before the crumb looks deeply brown, do not keep baking solely for darker color; this recipe calls for a lightly golden topping.
Build the plates so the crumb stays exposed
Spoon warm purée onto four plates, then lift a cod fillet onto each portion with a broad fish slice. Place the softened fennel and zucchini ribbons alongside and finish with the cooked whole peas and pea shoots. Leave any excessive dressing liquid in the vegetable bowl rather than flooding the purée.
Keep the top of the fish uncovered by purée and wet ribbons so the crumb layer remains distinct. Have the plates and garnishes ready before removing the cod from the oven. This is a useful place to prioritize sequence: the purée tolerates a brief gentle hold, while cooked fish is best plated promptly without repeated lifting or reheating.
Common questions
Why is my purée too loose?
Use the specified small water quantity and avoid adding the ribbon dressing to it. If needed, stir the purée gently over low heat to let a little moisture evaporate before plating.
Can I judge the cod by its browned crumbs?
No. Crumb color and fish temperature are separate checks. Measure the thickest flesh and cook to 145°F / 63°C, even if the topping already looks ready.
Technique & food-safety references
These primary references support the technique, safety and storage guidance. The recipe and cooking explanations are original Recipe Pinboard content.
