01 -
12 ounces top round beef, thinly sliced
02 -
Kosher salt and freshly ground black pepper
03 -
2 tablespoons peanut oil, divided
04 -
1 tablespoon soy sauce
05 -
1 tablespoon rice wine vinegar
06 -
1½ teaspoons crushed red-pepper flakes
07 -
1 red bell pepper, thinly sliced
08 -
1 yellow bell pepper, thinly sliced
09 -
1 green bell pepper, thinly sliced
10 -
1 orange bell pepper, thinly sliced
11 -
3 garlic cloves, minced
12 -
1 bunch scallions, thinly sliced
13 -
Sesame seeds, for garnish