Preheat oven to 350 degrees. Place ground beef in cast iron skillet and cook over medium heat until beef begins to brown.
Add onion and jalapeno and cook until onions begin to turn translucent.
Add pork and beans, barbecue sauce, green chilies, chili seasoning, and mustard.
Place skillet in oven and bake for 30 minutes. Let cool at least 10 minutes before serving
The original recipe also added ketchup to the pan. I skipped out on this as I didn't feel it needed it for our tastes. Please help yourself to my recipe and also, grab Kent's cookbook and the full experience of all his Cowboy Cooking recipes!