Mix cooked chicken with taco seasoning and chopped jalapenos in a bowl until evenly coated.
Dice tomato and slice avocado thinly.
Warm tortillas in a pan or microwave until soft and bendy.
Place seasoned chicken evenly over each tortilla.
Top with diced tomato, avocado slices, and purple onion.
Roll up tortillas tight and firm.
Serve immediately or wrap in foil to keep warm.
Notes
You can use pre-seasoned rotisserie chicken to save time. Add sour cream or shredded cheese for extra creaminess. Swap jalapenos for milder peppers if desired.