Cook chicken in water to cover in sauce pan. Drain and chop chicken. Combine with onion and cream cheese.
Mix milk, soup, and salsa in a small bowl. Cook tortillas in a small amount of oil in skillet, or warm on stove-top.
Place chicken mixture on tortillas. Roll tortillas to enclose filling. Place in 9x3" backing pan. Pour soup mixture over top. Sprinkle with cheddar cheese, olives, and green onions.
Bake covered at 350 degrees for 30 minutes.
Bake uncovered for 10 minutes longer.
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