Preheat oven to 375 degrees.
Place chicken on sheet pan. Drizzle some olive oil on chicken and season with salt, pepper, and complete seasoning. Make sure seasoning is evenly distributed.
Place peppers and onions on a sheet pan. Drizzle some olive oil onto vegetables and season with taco seasoning.
Place in the oven and cook for ~15 min or until chicken has reached an internal temperature of 165 degrees or above.
While chicken and peppers are cooking, add cilantro crema ingredients to a blender or food processor and blend until smooth. Place in the refrigerator and allow to set.
Assemble your fajitas. Add cilantro crema, cheese, lettuce, tomato, salsa, pico de gallo, shredded spinach, or whatever your heart desires to make this the BEST FAJITA EVER!!!