In a bowl, whisk together the Colavita Olive Oil, sesame oil, fish sauce, ginger, garlic, scallions, honey, lime juice, chilis and chopped cilantro.
Transfer half of this mixture to a shallow dish, reserving the other half in a covered container. Refrigerate the remaining marinade.
Add the steak to this dish and turn to coat it in the marinade. Cover and refrigerate overnight.
Remove the steak from the refrigerator and bring it to room temperature. Season the steak with salt and pepper.
Light a grill. Grill the steak over high heat until medium-rare, about 3 minutes per side.
Transfer the steak to a board and let rest for 5 minutes, then thinly slice across the grain. Serve the steak with extra sauce and chopped peanuts if desired.