Preheat your oven to 375°F and lightly grease a 9×13-inch baking dish.
In a skillet, warm olive oil and sauté the onion until tender. Add garlic, beans, chipotle, cumin, paprika, and season with salt and pepper. Incorporate chicken or beef if desired, cooking for 5–7 minutes.
Spread a thin layer of enchilada sauce in the dish. Place 4 tortillas across the bottom, tearing them to fit.
Layer half of the filling, sprinkle with cheese, and drizzle with sauce. Repeat with remaining ingredients, ending with tortillas topped with sauce and cheese.
Bake uncovered for 20–25 minutes until bubbling and hot.
While baking, craft olive spiders: use whole olive slices for bodies and cut slivers for legs, making 12–16 spiders.
Once out of the oven, position the olive spiders on top while hot so they adhere slightly.
Allow to cool for 10 minutes before serving.