Step 1: Preheat your oven to 350°F (175°C) to ensure the nachos get perfectly melted and crispy.
Step 2: Take a large baking sheet and spread the corn tortilla chips in an even layer, avoiding overcrowding.
Step 3: Sprinkle the shredded cheddar and pepper jack cheese evenly over the tortilla chips.
Step 4: Spoon the warmed chili over the cheese-covered chips to create a flavorful base.
Step 5: Scatter the sliced black olives and pickled jalapeños over the chili.
Step 6: Place the baking sheet in the oven and bake for about 10-15 minutes, until the cheese is bubbling and the edges of the chips are golden brown.
Step 7: Once out of the oven, top the nachos with diced tomatoes, sour cream, and green onions.
Step 8: Serve hot with a side of salsa for dipping. Enjoy!