In a small bowl, combine the ancho chile powder, cumin, oregano, paprika, and cayenne pepper (optional).
Stir the ingredients together until well combined.
If you are not using it immediately, transfer the low FODMAP taco seasoning to an airtight container for storage.
Notes
Yields 3 tablespoons; use 1.5 tablespoons per pound of meat. Store your low FODMAP taco seasoning in an airtight container in a cool, dry place for up to 6 months.