Preheat oven to 350°. Spray a 13×9-inch baking dish with cooking spray.
In a large skillet, heat oil over medium heat. Add onion and bell pepper; cook, stirring occasionally, until vegetables are just tender, 4 to 5 minutes. Remove from heat; stir in pork, beans, barbecue sauce, tomato paste, and Worcestershire until combined. Spoon into prepared pan. Loosely cover with foil.
Bake for 30 minutes. Top with cornbread. Bake, uncovered, until lightly browned, about 10 minutes. Let stand for 15 minutes before serving.
Notes
Use your favorite cornbread recipe, or pick up a loaf from the bakery section of the grocery store.
Recipe by Paula Deen Magazine at https://pauladeenmagazine.com/barbecue-baked-bean-casserole/