I would not recommend it. This cut of meat is juiciest and most tender when served hot from the skillet. Reheating the meat can cause it to dry out and make it much less tender. Since it only takes 30 minutes of hands-on time, it's worth it to make this recipe right before serving. If you're looking to prep a few components in advance, shred the cheese and slice the onions and peppers ahead of time and store them in separate containers in the refrigerator.