Teriyaki Beef & Mushroom Noodle Stir-Fry

• Discard any liquid from beef strip packaging. In a large frying pan, heat a drizzle of olive oil over high heat. • When oil is hot, cook beef strips in batches, tossing, until browned and cooked through, 1-2 minutes. Transfer to a bowl and cover to keep warm. • Return frying pan to medium-high heat with a drizzle of olive oil. Cook mushrooms until browned and softened, 8-10 minutes. • Add Asian greens and baby spinach leaves, until wilted, 1-2 minutes. TIP: Cooking the meat in batches over a high heat helps it stay tender.

• Meanwhile, half-fill a medium saucepan with boiling water. • Cook udon noodles over medium-high heat until tender, 3-4 minutes. • In the last minute of cook time, gently stir noodles with a fork to separate. Drain, rinse and set aside.