In a pot with a lid, add the water and bring to a boil. Add the rice, stir, reduce heat to medium-low, and cover with the lid. The temperature will be correct when a little steam is visibly leaking from the lid. Keep the lid on for 20 minutes without removing. When done, fluff with a fork and set aside.

Meanwhile, heat half of the oil in a skillet over medium-high heat. When hot, add the cubed steak and the salt and pepper. Stir fry for 5-6 min until almost fully cooked. Remove steak and set aside.

Put remaining oil into the skillet and add the frozen vegetables. Stir fry 4-5 minutes or until crisp but warmed through.

Return steak to skillet, stir.

Pour in stir-fry sauce and mix until it is well distributed.

Reduce heat to low and simmer until steak is fully cooked.

Serve over rice.

Mix ingredients together in a bowl and serve.

If you want to prepare multiple servings in advance, you can shred the carrots and lettuce and slice the onion in advance and store them in the fridge in a ziploc bag or tupperware container so you just have to dice a little cucumber and tomato and add a little dressing the next time.