This hearty and flavorful Three Bean Casserole combines beef frankfurters, pork and beans, butter beans, chili beans, onions, brown sugar, and vinegar. Perfect for gatherings or comforting family meals.
Preheat the oven to 350 degrees F (175 degrees C). Grease a 9x13-inch baking dish to ensure easy removal of the casserole after baking.
Combine Ingredients:
In a large mixing bowl, combine the sliced beef frankfurters, pork and beans, butter beans, chili beans, chopped onion, brown sugar, dried oregano, and distilled white vinegar. Mix thoroughly to ensure all components are evenly distributed and well-coated.
Transfer to Baking Dish:
Pour the mixed ingredients into the prepared 9x13-inch baking dish. Spread evenly to allow for consistent cooking.
Bake:
Place the baking dish in the preheated oven and bake uncovered for approximately 1 hour, or until the casserole is heated through and the top is slightly caramelized and bubbling.
Serve:
Allow the casserole to cool slightly before serving. This dish is best enjoyed warm but can be refrigerated and reheated if necessary.
Notes
To make this Three Bean Casserole gluten-free, use gluten-free beef frankfurters and ensure all canned beans are certified gluten-free. Substitute the distilled white vinegar with apple cider vinegar or another gluten-free option.