Crispy Pistachio-Crusted Fish with Lemon Dill Aioli

Pistachio Crusted Fish with Lemon Dill Aioli is an elegant yet simple dish that delivers restaurant-quality results at home in about 30 minutes. Crispy, nutty pistachios pair with bright lemon and fresh dill for a flavorful topping that complements flaky white fish. This is a lovely choice for date night but easy enough to prepare on a busy weeknight. Serve alongside roasted potatoes or a light salad for a complete meal.

Fish is one of our favorite dinners, but because it’s perishable and my husband’s schedule varies, we plan fish nights in advance. When I can, I use fresh fillets. For convenience I also keep a trusted brand of frozen barramundi on hand; it’s a mild, flaky white fish that performs well in quick baked recipes. If you can’t find barramundi, tilapia, sole, catfish, cod, or a similar mild white fish all work well. Thicker fillets like salmon or Chilean sea bass can also be used—just add a few extra minutes to the cooking time.

This pistachio crust adds a satisfying crunch and a subtle nutty flavor that accents the fish without overpowering it. The Lemon Dill Aioli brings brightness and a touch of garlic, balancing the richness of the pistachios and mayonnaise. The aioli is essentially a flavored mayonnaise and comes together in moments while the fish bakes.

How to make Pistachio Crusted Fish with Lemon Dill Aioli

• Preheat your oven and prepare a baking dish by brushing it lightly with olive oil.
• Pulse pistachios in a mini food processor until they are coarsely ground—aim for small, uneven pieces for texture rather than a fine powder.
• Mix the ground pistachios with lemon zest and chopped fresh parsley. Season the mixture with salt and freshly ground black pepper to taste. If your pistachios are salted, add only a little or skip extra salt.
• Place the fish fillets in the oiled baking dish. Brush the top of each fillet with a thin layer of mayonnaise; this helps the pistachio mixture adhere and creates a moist crust.
• Press the pistachio mixture evenly over the mayonnaise-coated tops of the fillets, covering them completely.
• Bake until the fish flakes easily with a fork—typically 12–15 minutes for thinner fillets, longer for thicker cuts. Remove from the oven and let rest briefly.
• While the fish bakes, whisk together the aioli: mayonnaise, fresh dill, lemon juice, and minced garlic. Adjust seasoning to taste.

That’s all there is to it. The finished dish presents beautifully—golden-green pistachio crust atop tender fish—served with a spoonful of Lemon Dill Aioli. It makes an attractive plate for entertaining or a special weeknight dinner.

Serve with

• Roasted potato wedges or herbed mashed potatoes
• A simple lemony green salad or steamed vegetables
• Oven risotto, roasted mushrooms, or a barley and bean salad for a heartier accompaniment

More fish dishes for two

• Blackened halibut with mango and avocado salsa
• Butter-basted halibut with lemon-braised baby vegetables
• Mediterranean fish en papillote
• Sheet pan Thai-style baked fish with garlic broccolini
• Halibut ceviche or a Mediterranean white bean and fish skillet

This Pistachio Crusted Fish with Lemon Dill Aioli is flexible and forgiving: try different nuts, swap herbs, or use whatever mild fish you have available. The components can be prepared a day ahead—assemble the fillets in advance and store covered in the refrigerator; the aioli also keeps a day or two chilled—making it a practical option for entertaining or an easy, impressive weeknight meal.

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