Preheat oven to 400°F.
Heat a skillet over medium-high heat and add bacon.
Let brown and then add onions and jalapeno and cook until they have softened and are beginning to caramelize.
Cool slightly and then pour into a bowl and add grated cheese.
Toss to combine.
Spread the tortilla chips in a single layer on a large baking sheet and top each one generously with a spoonful of the cheese mixture.
Bake for 10 minutes or so until chips are golden and cheese is melted and bubbling.
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