
Canned beans get a boost of big homemade flavor with bacon, onion, peppers, and a bunch of sweet, tangy, and zesty seasonings.
Preheat the oven to 350°F and set the rack to the middle position.
In a Dutch oven or deep ovenproof skillet, over medium-high heat, cook the bacon until crispy. Transfer to a paper towel-lined plate and set aside, reserving 2 tablespoons of bacon fat in the Dutch oven.
Add the red onion and green bell pepper to the Dutch oven and cook until softened, stirring frequently.
In a small bowl, whisk together the brown sugar, ketchup, molasses, cider vinegar, Worcestershire sauce and dry mustard to make the sauce.
Add the beans and sauce to the the onion and green bell pepper. Stir well to combine.
Cover the Dutch oven and bake covered for 90 minutes. Stir in the bacon, reserving 2 tablespoons for garnish, and cover. Bake 20 to 30 minutes more or until the sauce has cooked down to the desired consistency.
Remove from the oven, uncover, and let the beans rest for 5 minutes to thicken the sauce. Garnish with reserved bacon and green onions if using. Serve.