Preheat oven to 350 degrees F.
In a Dutch oven, cook bacon over medium heat until browned and crispy. Add onions and a dash of salt and pepper. Allow to cook for a few minutes.
In a large bowl, mix together pinto beans, brown sugar and diced tomatoes. Add to Dutch oven and allow cooking.
Add 1 cup of water. Cook for 30 minutes.
Recipe courtesy of Paula Deen, 2008