Preparation

• Pat the cod dry and season with salt and pepper.
• Heat the oil in a 12-inch nonstick skillet over medium-high heat. Add the pancetta and cook, stirring, until crisp and golden, 2 to 4 minutes. Using a slotted spoon, transfer the pancetta to a paper-towel-lined plate, leaving the fat behind in the pan.
• Add the fish to the skillet and cook until slightly golden, about 3 minutes. Flip and transfer to a plate, seared side up.
• Add the onion, thyme, and pepper flakes to the skillet; cook, stirring, until the onion is soft, about 4 minutes. Add the wine and cook until the pan is almost dry, about 1 minute. Add the tomatoes and their juice, artichokes, and olives. Simmer, stirring occasionally, to meld the flavors, about 2 minutes.
• Lower the heat to medium and nestle the fish into the sauce, keeping the seared side exposed. Cover and cook until the fish is opaque and just cooked through, about 3 minutes. Sprinkle with the pancetta, divide among rimmed plates or wide, shallow bowls, and serve.