In a skillet over medium high heat, brown the ground beef along with the bacon and onion. Cook and stir until the beef and bacon are fully cooked. Then drain off any fat.
In a medium bowl, whisk together the brown sugar, vinegar, mustard, salt and ketchup. Set aside.
In a large dutch oven or oven safe casserole dish, add the drained lima beans, rinsed and drained kidney beans and then add the whole can of pork and beans, juice and all.
Add the beef/bacon mixture and then add the sauce. Mix well until it is all combined.
Preheat the oven to 300ºF.
Cover the beans (if you don't have a lid that works, use aluminum foil), then bake for 45 minutes or until heated through and bubbling.
Serve warm.
Store any leftovers in an airtight container in the refrigerator for up to 4 days.
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Notes
Refer to the article above for more tips and tricks.The calories shown are based on the recipe making about 10 cups, with 1 serving being 1 cup. Since different brands of ingredients have different nutritional information, the calories shown are just an estimate. **We are not dietitians and recommend you seek a nutritionist for exact nutritional information. The information in the nutrition box are calculated through a program and there is room for error. If you need an accurate count, I recommend running the ingredients through your favorite nutrition calculator.**