These flank steak tacos are a delicious and easy weeknight dinner. The steak is seasoned with a blend of spices, then grilled or pan-seared until perfectly cooked. Serve the steak in warm tortillas with your favorite toppings, such as avocado, salsa, and cilantro. This recipe is also great for meal prep, as the steak can be cooked ahead of time and reheated when ready to serve.