Creating Lime & Cilantro Steak Tacos is straightforward if you follow these simple steps:

1. Marinate the Steak: In a bowl, combine lime juice, olive oil, minced garlic, chili powder, cumin, salt, and black pepper. Add the flank steak and coat it evenly. Cover and let it marinate in the refrigerator for at least 30 minutes.

2. Prepare the Grill or Skillet: Preheat your grill or skillet over medium-high heat. If grilling, ensure the grates are clean and lightly oiled.

3. Cook the Steak: Remove the steak from the marinade, allowing excess to drip off. Place it on the grill or skillet. Cook for about 4-5 minutes on each side for medium-rare, adjusting the time to your preferred doneness.

4. Rest the Steak: Once cooked, remove the steak from the heat and let it rest for 5-10 minutes. This resting period allows the juices to redistribute, ensuring a tender bite.

5. Slice the Steak: After resting, slice the steak against the grain into thin strips. This will keep the meat tender and easy to chew.

6. Warm the Tortillas: While the steak is resting, warm the corn tortillas on the grill or in a skillet for about 30 seconds on each side, until they are pliable.

7. Assemble the Tacos: Place a few slices of steak onto each tortilla. Top with diced onions, tomatoes, and fresh cilantro.

8. Add Avocado: Add slices of avocado on top for a creamy texture.

9. Serve with Lime: Squeeze fresh lime juice over the tacos for an extra burst of flavor.

10. Enjoy: Serve immediately while the tacos are warm and flavorful.

These steps will guide you in creating incredibly delicious Lime & Cilantro Steak Tacos that are sure to impress.