Crispy Szechuan Beef Stir-Fry

Ingredients

• 1/2 lb beef, thinly sliced
• 1 inch ginger, minced
• 2 cloves garlic, minced
• 1 onion, sliced
• 1 bell pepper, sliced
• 1 cup green beans, trimmed
• 1 cup broccoli florets
• 2 tbsp soy sauce
• 1 tbsp rice vinegar
• 1 tbsp sesame oil
• 1 tsp Szechuan peppercorns, crushed
• 2 tbsp cornstarch (divided)
• Cooking oil (for frying)
• Cooked rice to serve (about 1 cup cooked)