Preheat your oven to 425 degrees.
Line your baking sheet with parchment (if you want easy clean up). Arrange your sliced peppers and onions. Top with chicken thigh strips.
Drizzle olive oil all over and season with taco seasoning!
Pop in oven for 30 minutes. Stirring mixture around 15 minutes in.
Heat up your tortillas in some foil last 10 minutes of cooking time.
Enjoy!