Coat the chicken tenders in ranch seasoning and saute on medium heat until fully cooked. Using two forks, shred the chicken tenders.
Combine all the ingredients for ranch dressing in a bowl, whisk well.
Preheat the oven to 350.
In an oven-safe serving tray, spread out half of the chips evenly. (If you want to do three layers, spread out a third of chips and repeat layers three times.)
Evenly, spread half of the shredded chicken over the chips. Sprinkle half of the tomatoes and green onion.
Evenly, drizzle half of the ranch dressing, try to get all the chips.
Grate half of the cheese over the nachos.
Repeat layers.
Bake for about 10 minutes, until all the cheese is nicely melted.