Preheat oven to 400 degrees.
In a large bowl, toss squash with oil, chili powder, cumin, garlic powder, salt and pepper.
Place squash on a shallow baking pan lined with parchment paper or sprayed with nonstick spray.
Bake 15 to 20 minutes or until fork tender.
Remove from oven but keep the oven on, lowering heat to 350 degrees.
On a sheet pan, layer half the squash and then chips. Top with the rest of the squash, black beans,and cheese. Repeat.
Bake until cheese is melted, approximately 5-8 minutes. Serve topped with tomatoes, green onion, avocado, and even some salsa.