I add the pumpkin puree to a small bowl along with the cumin, garlic powder, cinnamon, and a pinch of salt. I stir everything together until it's smooth and evenly seasoned. This only takes a minute, but it's the step that gives the whole dish its flavor.
I set a large skillet over medium heat and spray it lightly with cooking oil. I like to let the pan warm up for about a minute before adding anything, so the tortillas start crisping the moment they touch the surface.
I lay a tortilla flat and spread a spoonful of the pumpkin mixture over one half. Then I layer on black beans, a bit of green chile, and a generous handful of cheese. I fold the tortilla in half so the filling is fully enclosed.
I place the folded tortilla in the pan, cheese side down first, so it melts quickly and helps hold everything together. I cook it for about 3 to 5 minutes per side, flipping once the bottom turns golden brown.
Once both sides are crisp and the cheese is fully melted, I move the quesadilla to a cutting board and let it rest for a minute. Then I slice it into triangles and serve it while it's still warm.