Preheat oven to 350 degrees. Cook the ground beef until no pink is visible within the meat and season it per your liking (I usually use onion powder, garlic powder, salt and black pepper). Drain off any excess grease.
Pour the baked beans into a 7x13 casserole dish and add the bell pepper, onions, mustard, BBQ sauce, bacon, ground beef and brown sugar. Stir until well combined.
Bake at 350 degrees for 30-45 minutes. Serve and enjoy!