Vegan Green Bean and Mushroom Stir-Fry

Ingredients

• 400g green beans, trimmed and cut into 2-inch pieces
• 250g mushrooms, sliced
• 2 tablespoons olive oil (or any preferred cooking oil)
• 1 medium onion, thinly sliced
• 3 cloves garlic, minced
• 2 tablespoons soy sauce (or tamari for gluten-free)
• 1 tablespoon hoisin sauce
• 1 teaspoon sesame oil
• 1/2 teaspoon red pepper flakes (optional, for a bit of heat)
• Salt
• pepper
• Sesame seeds for garnish (optional)
• Cooked rice or quinoa for serving (optional)