Ready in 2 hours
Citrus marinated flank steak and avocado mango cruda make this refreshingly light taco perfect for summer get togethers!
Place flank steak in large ziplock bag. Add citrus juices, (reserving 2 tbsp of the lime juice for the avocado mango cruda), garlic, olive oil, cumin, oregano and chipotle chilis. Marinate in refrigerator for at least 2 hours, but up to overnight.
Combine avocados, mangos, cilantro, 1 tsp cumin, cilantro, onion and remaining lime juice. Mix gently, cover and refrigerate until ready to use.
Grill flank steak on gas grill or stovetop on a grill pan until charred on both sides, and medium well. (Or however you prefer it.) Wrap in foil and allow to rest for 10 minutes before slicing. Slice, on the bias as thin as possible.
Char tortillas on an iron skillet. Layer tortilla with beef and salsa cruda. Que Rico!