Cook the waffle fries according to the package instructions on a parchment-lined baking sheet.
Remove the fries from the oven and top with the black beans, bacon and cheese. Return to the oven until the cheese melts and is bubbling, about 5 minutes.
Meanwhile, heat a medium nonstick skillet over medium heat. Spray the skillet with nonstick cooking spray. Pour the eggs into the hot skillet. Cook, stirring occasionally, until the eggs are just cooked and opaque yellow, 2 to 3 minutes. Season with salt and pepper.
While the eggs are cooking, make the guacamole. Combine the avocados, garlic, lime juice and salt and pepper to taste in a mixing bowl and mash with a fork until chunky. Add the tomato, serrano and cilantro and mix well.
Remove the fries from the oven and top with the red onion, scallions and cooked eggs. Dollop dabs of guacamole evenly around the nachos. Serve immediately.