Preheat oven to 350°. Spray a casserole dish with cooking spray.

In a large saucepan, brown beef, onions and bell pepper. Add the pork and beans, ketchup, mustard, worcestershire sauce, soy sauce and brown sugar to the mixture. Simmer for 5 minutes. Transfer mixture to casserole dish. Sprinkle bacon over the top of the casserole. Cover the dish with aluminum foil and bake for 45 min. Remove foil and bake for another 10 min. Let the dish stand for 10 minutes before serving.