Mix Dei Fratelli Petite Diced Tomato and Dei Fratelli Chopped Mexican Tomatoes in a large mixing bowl. Add avocado, 2 tablespoons lime juice, cilantro, and chopped garlic to the tomato mixture. Set aside.
Wrap the tortilla shells comfortably in aluminum foil pouch and place in the warm oven.
Heat a nonstick skillet over medium high heat and add the canola oil. Season the fish with salt and pepper and carefully place in the skillet and cook gently, turning once, and finishing on the other side. Drizzle the remaining lime juice over the cooked fish.
Carefully remove the tortillas from the oven and open the aluminum pouch. Spoon a generous amount of sour cream on each and add the fish, tomato mixture, and sprinkle with feta cheese.
Feel free to substitute tilapia, shrimp or even chicken for catfish.