2 (15-oz.) cans no-salt-added pinto beans, rinsed and drained 2 cups barbecue sauce--see recipes: Sugar-Free BBQ Sauce (click here) BBQ Sauce (click here) Basic BBQ Sauce (click here) Preheat the oven to 325 degrees F. Combine the pinto beans and barbecue sauce in a large bowl, and mix well. Transfer the beans to an 8x8-inch casserole dish. Bake, uncovered, for 1 hour. Let stand for 5 minutes before serving.