I have made this dish before, but I used the lazy way this time. I had some roma tomatoes that were going to go bad, so I put a little olive oil with 1 onion, 1 clove of garlic, and about 6 of the tomatoes. I let them cook until they were nice and soft. Then I added about 1/4 cup of fresh basil. I poured this over the trout or in my case tilapia.
Remove the sauce from the heat. Clean-out the pan and heat over medium-high heat. Add 1/2 teaspoon oil. Sprinkle fish with salt and pepper. Cook 2 minutes on each side. Top with tomato mixture.