For lunch we had Chicken & Carne Asada Fajitas. For the carne asada, we like to use flap meat. We slice it very thin, then marinade it for a couple hours before cooking it. For the chicken, we use chicken thigh meat, it doesn't dry out like the breast meat does.
VeggieProject has a great roasted salsa recipe if you need one to go with fajitas or tacos:
http://veggieproject.com/vegetarian/roasted-salsa/