Pescado Frio Con Guacamole

Pescado Frio Con Guacamole translates as cold fish with guacamole, and it’s the kind of dish that thrives in hot weather. Lime-marinated fish fillets bake gently in the oven, then chill before getting blanketed in a chunky avocado and tomato salsa that’s somewhere between a guacamole and a salsa cruda.

The magic move is the timing. The fish must cool fully before the avocado mixture goes on top, otherwise the green topping turns sad and brown from the residual heat. The lime marinade does heavy work in just a few minutes, brightening the fish and seasoning every flake from the surface in.

Garnished with rings of black olive and strips of red bell pepper for color, this is the kind of dish that looks like it belongs at a Oaxacan beach restaurant. Serve with warm tortillas and a cold beer.

Pro Tips

• Use a firm white fish like snapper, halibut, or sea bass. Delicate fillets fall apart under the topping.
• Don’t over-marinate in lime juice. Five to ten minutes is plenty. Longer and the acid starts to denature the protein and turn the texture mushy.
• Bake until the fish flakes but still looks moist. Carryover heat takes it the rest of the way as it cools.
• Mash the avocado leaving some chunks. Smooth-mashed avocado looks like baby food on top of fish.
• Press plastic wrap directly onto the avocado mixture if making the topping ahead. It prevents browning until you’re ready to assemble.

Variations

• Stir in a teaspoon of toasted cumin to the avocado mixture for a smokier dimension.
• Replace tarragon with cilantro for a more authentically Mexican herb profile.
• Garnish with crumbled cotija cheese and pickled red onion in place of olives and bell pepper.