Very good. I used venison instead of beef, and made my own fajita marinade from the betty crocker cookbook, adding lime juice. I also took SusieQusie's advise and added peppers to the onion packet. Next time I'll grill the mangoes a bit, too.
*Excellent !* As much as I love mangoes, I never thought of eating them with fajitas. I made just as written but for adding some thinly sliced poblano pepper to the onion packet. The onions and pepper retained some crunch and paired well with the soft, sweet mango. The steak was tender with a tart/peppery flavor. This dish is just an all round winner for ease of prep, visual appeal and taste! *SURE* to be repeated many times in my kitchen! Thanks for sharing!