If you're meal prepping in advance for a quick-fix dinner, cut your veggies, shred your cheese, chop your cilantro, and place everything in air-tight containers until you're ready to begin cooking. Make the marinade, then slice your steak and toss the steak slices into a zip-top bag with 1/3 of that delicious mixture. Close the bag, smoosh the steak around gently so it's all evenly coated, then place it in the fridge until you're ready to start dinner. Put the other 2/3 of the marinade in an air-tight container to use with your vegetables later on. With all the prep work out of the way, you could have dinner on the table in less than twenty minutes!