Preheat the Oven: Preheat oven to broil and lightly grease a 13 x 18-inch sheet pan with nonstick cooking spray.
Cook the Beef: In a large skillet over medium-high heat, brown the ground beef, breaking it apart as it cooks. Drain excess grease.
Season the Beef: Stir in taco seasoning and water, bring to a boil, then reduce heat and simmer for 3–4 minutes, stirring occasionally, until thickened.
Layer the Nachos: Arrange half of the tortilla chips on the sheet pan. Top with half of the beans and cheese. Repeat with a second layer of chips, beans, and cheese.
Broil: Place the sheet pan under the broiler for 1–3 minutes, or until the cheese is melted and bubbly. Watch closely to prevent burning.
Add Toppings & Serve: Remove from the oven and immediately add your desired toppings, such as tomatoes, black olives, lime wedges, salsa, guacamole, sour cream, jalapeños, cilantro, diced onion, avocado slices, hot sauce, shredded lettuce, pico de gallo, or corn. Serve warm!
Notes
Make-Ahead Tips: Chop all vegetables, cook and season the meat, and shred the cheese ahead of time. Reheat the precooked ground beef before assembling. Assemble and bake right before serving to keep the nachos crisp.Storage: Nachos are best enjoyed fresh. However, leftovers can be stored in an airtight container in the refrigerator for up to 3 days. Note that the chips may become soggy.Freezing Instructions: The seasoned ground beef can be frozen for up to 3 months. Thaw overnight in the refrigerator and reheat before assembling. Do not freeze assembled nachos, as the chips will not hold up.