Preheat the oven to 350°
In a saute pan over medium heat cook ground beef until completely browned, about 5 minutes
Drain the fat and add in the water and taco seasoning. Stir to combine and continue cooking until the water begins to simmer and the sauce thickens, about 3-4 more minutes.
On a greased sheet pan with lipped sides, lay tortilla chips in an even layer, leaving no gaps where possible.
Spoon the ground beef over the chips, followed by the black beans and both cheese, making sure to distribute evenly over all of the chips.
Place in the oven for 7-10 minutes, or until the cheese is melted and bubbling.
While the sheet pan is in the oven, prep/chop the veggies.
Remove the sheet pan from the oven and layer on the tomatoes, red onions, and avocado.
In a small bowl, combine sour cream and lime juice. Place in a ziplock back and cut the corner off. On the nachos, spoon on the salsa and drizzle all over with the sour cream lime mixture.
Sprinkle on the cilantro and green onion, and finish off with the jalapeno slices. Serve immediately
