Creating your Sheet Pan Nachos is straightforward. Follow these steps for a delicious result:

1. Preheat your oven to 375°F (190°C).
2. Prepare the Baking Sheet: Line a large baking sheet with parchment paper for easy cleanup.
3. Layer the Chips: Spread the tortilla chips evenly across the baking sheet, covering the surface.
4. Add the Meat: If using, sprinkle the cooked and seasoned ground beef or shredded chicken evenly over the chips.
5. Layer the Cheese: Generously sprinkle the shredded cheese over the chips and meat.
6. Add Beans and Jalapeños: Distribute the black beans and jalapeños over the cheese, ensuring even coverage.
7. Bake: Place the baking sheet in the preheated oven and bake for about 10-15 minutes, or until the cheese is melted and bubbly.
8. Remove from Oven: Carefully take the nachos out of the oven and allow them to cool slightly.
9. Top with Fresh Ingredients: Add diced tomatoes and avocado on top of the melted cheese.
10. Garnish: Finish with a dollop of sour cream and a sprinkle of chopped cilantro for added flavor.

Following these steps will give you a beautiful and delicious tray of Sheet Pan Nachos that everyone will enjoy.