Creating Garlic Steak and Potato Foil Packs is a breeze if you follow these clear steps:

1. Preheat the Oven or Grill: Preheat your oven to 400°F (200°C) or prepare your grill for medium-high heat.
2. Prepare the Ingredients: In a large bowl, combine steak pieces, halved baby potatoes, minced garlic, olive oil, rosemary, thyme, salt, and pepper. Toss to coat everything evenly.
3. Cut the Foil: Cut 4 large squares of heavy-duty aluminum foil, around 12 inches each.
4. Make the Packs: Place an even portion of the steak and potato mixture in the center of each foil square. Fold the foil tightly around the mixture to create a sealed packet.
5. Cook: Place the foil packs on the grill or in the oven. Cook for about 20-25 minutes or until the steak is cooked through and the potatoes are tender.
6. Check for Doneness: Remove the packs carefully. Open one to check if the steak is cooked as desired and the potatoes are tender; if not, reseal and continue cooking for a few more minutes.
7. Garnish: Once done, carefully open the packs (watch for steam) and sprinkle with fresh parsley if desired.

These steps lead you to a delightful meal that can impress anyone without extensive cooking knowledge.