Brussels Sprouts and Steak Stir-Fry

INGREDIENTS

• 3 tablespoons oyster sauce
• 3 tablespoons reduced-sodium soy sauce
• 2 tablespoons unseasoned rice vinegar
• 4 tablespoons vegetable oil, divided
• 1 pound brussels sprouts, halved
• 8 ounces flank or skirt steak, thinly sliced against the grain
• Kosher salt
• 4 scallions, whites chopped, greens sliced
• 3 garlic cloves, sliced
• 2 tablespoons chopped peeled ginger
• 2 medium carrots, peeled, thinly sliced on a diagonal
• 1 Fresno chile or jalapeño, sliced into rings
• Steamed rice (for serving)