Season beef with salt and pepper, then toss in 1 tbsp corn starch and let sit while veggies are prepared

Pour 1 tbsp olive oil into pan and heat at medium, add beef and cook 2-4 minutes until browned (does not have to be cooked through). Remove from pan and set aside when done.

Wipe out pan, add remaining 1 tbsp olive oil and veggies, cooking 6-8 minutes until tender

Make the sauce. Mix orange juice, water, soy sauce, sesame oil, garlic, ginger, and brown sugar.

Add sauce to veggies, and bring to simmer. Mix 1 tbsp cornstarch with 3 tbsp water, and add slowly until it reaches desired thickness

Add beef back to pan and mix well

Serve over rice or noodles!