Browned bacon in cast iron skillet until crispy; remove. Add diced onion and jalapenos to skillet, saute until just tender then transfer to a large crockpot.
Now add 1/2 lb. of ground pork and 1/2 lb. of ground beef to the skillet to brown off; add this to the crockpot along with cubed beef and crispy bacon. Deglaze pan with a beer and add to the crockpot.
Add diced tomatoes, tomato sauce, and seasoning; stir well.
Set crockpot on low for 6-8 hours or high for 3-4 hours. If using kidney beans, add 1 hour before serving.
Optional garnishes; shredded cheese, sour cream, fresh cilantro, sliced avocado