Step 1

Preheat the oven to 325 degrees Fahrenheit.

Step 2

In a skillet over medium heat, fry the bacon until crispy.

Step 3

Add the chopped onion and saute in the bacon grease until translucent. Add the beans, mustard, maple syrup, and ketchup. Mix to combine.

Step 4

Transfer the beans into a shallow baking dish or casserole. Cover the dish with foil and bake for 45 to 60 minutes, or until bubbly. Serve and enjoy!