Slice each avocado lengthwise around the pit, twist the halves apart, remove the pit, and scoop the flesh into a large mixing bowl. Mash with a fork, leaving it slightly chunky for better texture.
Add the shredded chicken, chopped grape tomatoes, cilantro, and sliced green onions to the bowl.
Add all spices — chili powder, smoked paprika, cumin, garlic powder, coriander, salt, and black pepper — along with the lime juice.
Stir everything together until the spices coat the filling evenly. Taste and adjust salt, lime, or chili powder as needed.
Warm the tortillas for 10–15 seconds in a dry skillet or microwave so they are pliable and won't crack when rolled.
Lay a tortilla flat and spoon a generous amount of filling into the center, leaving about 2 inches of space on all sides. Fold in both sides, then roll from the bottom up, keeping it tight. Serve immediately or store filling separately for later.