Preheat your oven to 375°F.
Lightly mist a 9×9-inch pan or any 2.5-quart baking dish with nonstick spray to prevent sticking.
In a large mixing bowl, combine the refried beans, sour cream, ½ cup shredded cheese, diced green chiles, chili powder, salt, cumin, garlic powder, oregano, and paprika. Mix everything until fully incorporated.
Spread the bean mixture evenly into your prepared baking dish using a spatula.
Sprinkle the remaining ½ cup of shredded cheese over the top.
Place the dish in the oven and bake for about 20 minutes, or until the cheese is fully melted and lightly browned. The dip should be bubbling around the edges.
Carefully remove from the oven and let it cool slightly. Add your favorite toppings before serving with tortilla chips, fresh veggies, or crackers.