Steps
1. Preheat oven to 375°F.
2. Place tortilla on a baking sheet and brush top lightly with olive oil.
3. Bake tortilla for 5 minutes.
4. Remove from oven and top with black beans and cheese.
5. Place back in the oven for 5 minutes until cheese is melted.
6. Remove and let cool before slicing into triangles.
7. Assemble bowl with lettuce, black beans and cheese, and top with guacamole.