Step 1

In a bowl, combine the oil, vinegar, garlic, paprika, and salt and mix well. Add the tomatoes, onion, and pistachios and stir to coat evenly with the oil mixture. Set aside.

Step 2

Season the fish steaks on both sides with the salt and pepper. In a frying pan large enough to hold the fish steaks in a single layer, melt the butter over medium-high heat.

Step 3

When the butter foams, add the fish steaks and cook until the bottoms are golden and the sides are beginning to become opaque, about 3 minutes.

Step 4

Turn and continue to cook until golden on the second side, the sides are completely opaque, and the flesh easily flakes with a fork, about 4 minutes longer.

Step 5

Transfer the fish steaks to dinner plates. Spoon the salsa overthe steaks, dividing it evenly. Serve immediately.