Made these sizzling fajitas last night. The most interesting thing about it is the grain-free, ketogenic tortillas. They were a great substitute. You can find the exact recipe here. For the spice mix of the fajitas, I used this (minus the cornstarch and sugar, plus a bit of chipotle). The rest of the ingredients to assemble the fajitas: beef, peppers, onions, guac with some salsa, sour cream.