Arrange tortilla chips in a single layer on the bottom of a foil pie plate or baking pan. Make sure the entire bottom of the plate or pan is covered. (It’s okay if the edges of the chips overlap a little; just not too much.)
Top the chips with an even layer of shredded cheese. Sprinkle a little taco seasoning on top of the cheese.
Add another layer of tortilla chips.
Top with more shredded cheese and taco seasoning.
Evenly spread the chopped onions, green peppers, tomatoes, and jalapeños over the top of the cheese. You can optionally add black beans or meat here, though it may have to stay over the fire a few minutes longer to make sure they get heated through. Top with nacho cheese or queso dip.
Cover with foil.
Place on the grill over a campfire until the cheese is melted.
Serve as is or with a spread of optional toppings.
