An easy way to make this Tex-Mex favorite, our tasty Fajita mix can be sprinkled on meats or in sauces. For a marinade, mix with water and a little oil. For a sauce, add cornstarch to the marinade mix to thicken it. A squeeze of fresh lime juice brings the flavors alive. Paprika, onion, garlic, orange peel, a dash of sugar and spices.