Herb Crusted Trout with Garlic Chili Spinach

Trout fillets coated in Dijon mustard and dredged in a five-herb bread crumb crust, then pan-fried in brown butter. Served alongside spinach wilted with garlic and chili flakes. This is the kind of dinner that looks and tastes like a $40 restaurant plate but takes 30 minutes from start to finish.

The Dijon acts as the glue between the fish and the herb crust. It coats the surface so the bread crumbs stick, and adds a sharp, tangy layer underneath the crispy exterior. Chervil, tarragon, thyme, parsley, and chives all go into the crumb mixture, each bringing a different herbal note.

Brown butter is the cooking fat, not just melted butter. Cooking the butter until it turns light brown and smells nutty (2 to 3 minutes, stirring) creates a toasted, rich flavor that plain butter can’t match. The fish cooks fast in that hot brown butter: about 90 seconds per side.

Chef Tips

• Watch the butter carefully. It goes from brown to burnt in seconds. The moment it smells nutty and looks golden, the fish goes in.
• Don’t press down on the fillets while cooking. Let the crust form undisturbed for a crispy result.
• Cook the spinach in a separate, clean skillet on high heat. It wilts in under a minute and should still be bright green, not olive drab.
• Drain the wilted spinach on a towel as the recipe says. Excess water on the plate dilutes the flavors and makes everything soggy.

Variations

• Lemon brown butter: Squeeze fresh lemon juice into the brown butter after cooking the fish for a bright, acidic sauce to spoon over the fillets.
• Almond crust: Add finely chopped toasted almonds to the bread crumb mixture for extra crunch and nutty flavor.
• Salmon swap: Use salmon fillets instead of trout. The herb crust and brown butter work just as well with richer fish.