Preheat the oven to 400°F.
On medium-high, heat the skillet.
Crumble the ground beef into the skillet, breaking up any large chunks and cook until done; about 5 minutes.
Drain the ground beef.
Add the taco seasoning and water per packet directions and cook as directed. (see notes)
Once cooked, remove beef from skillet and set aside in a bowl.
Wipe the skillet clean with a paper towel.
Layer half the alloted tortilla chips into the bottom of the skillet.
Spoon over half of the chili and taco meat.
Sprinkle half of both cheeses evenly over the chili and taco meat.
Spoon half of the tomatoes, olives, and jalapeños over the cheese.
Sprinkle the majority of the white parts of the green onions.
Evenly layer the remaining tortilla chips in the skillet.
Spoon the remaining chili and taco meat over the chips.
Sprinkle the remaining cheeses over the beef and chili.
Spoon over the remaining tomatoes, olives, and jalapeños over the cheese.
Sprinkle the remaining white parts of the green onions and most of the green, reserving a few for fresh garnishing.
Bake for 7-10 minutes, or until the cheese is melted and everything is heated through.
Garnish with the remaining green onions.
Serve hot with sour cream and salsa.