In a large skillet, brown ground beef. Drain and set aside.
Add bacon to the skillet and cook 5 to 7 minutes or until cooked through, stirring frequently.
Add onions and cook an additional 4 to 5 minutes or until onions are soft and translucent.
Add ground beef and bacon mixture to a large oven safe pot or Dutch oven.
Add pork n' beans, drained kidney and white beans, ketchup, brown sugar and liquid smoke.
Stir gently to combine. Place in a 350 degree oven for about an hour.
Serve with tortilla chips, corn chips, sour cream, cheese.