Goat Cheese-Stuffed Flank Steak

Preheat oven to 425 degrees F.

Place steak on a cutting board, cover with plastic wrap and pound with a meat mallet or heavy skillet to an even 1/4-inch thickness. Sprinkle one side with garlic powder and 1/8 teaspoon salt. Spread cheese in a 1-inch-wide strip down the middle of the steak. Top with peppers and arugula. Starting at one edge of a long side, roll the steak up tightly, tucking in the filling as you go. Tie with kitchen string at 2-inch intervals. Season with the remaining 1/4 teaspoon salt and pepper.

Heat oil in a large cast-iron skillet over medium-high heat. Add the steak and cook, turning often, until browned on all sides, 3 to 6 minutes total. Transfer the pan to the oven and roast until an instant-read thermometer inserted in the center registers 120 degrees F for medium-rare, 12 to 15 minutes.

Transfer the steak to a clean cutting board and let rest for 5 minutes. Cut crosswise into 8 slices.