Quick Sticky Beef Noodles

Name: Quick Sticky Beef Noodles
Ingredients: 8 oz (225g) rice noodles (or lo mein/udon noodles); 1 lb (450g) beef sirloin or flank steak, thinly sliced; 2 tbsp cornstarch; 3 tbsp vegetable oil, divided; 1 red bell pepper, thinly sliced; 2 cups (120g) broccoli florets; 3 green onions, sliced (plus extra for garnish); 2 garlic cloves, minced; 1 tbsp fresh ginger, grated; 1/4 cup (60ml) soy sauce; 2 tbsp hoisin sauce; 2 tbsp honey or brown sugar; 2 tbsp rice vinegar (or lime juice); 1 tbsp sesame oil; 1/4 tsp red pepper flakes (optional, for heat)