In a heavy pan (like an iron skillet), bring the beer to a boil and allow to boil at medium high until it is reduced by half. Pour into a large bowl and allow to cool.
Move the oven rack to the bottom two rungs and preheat to 350. Lightly grease a deep 9x13 baking dish. (Alternately, you can use two smaller baking dishes or even a couple of cast iron skillets)
In the same iron skillet you reduced the beer in, cook the bacon pieces over medium heat till crispy. Remove the pieces and drain on a towel but reserve the bacon fat. Add the onion and cook until tender and translucent. Add in the chopped jalapeno and the green onions and saute for about a minute. Add in the hamburger and brown until just past pink. Add in the minced garlic and cook one more minute. Add salt and pepper to taste. Remove from the heat and allow to cool.
In the large bowl where the beer reduction is cooling, combine all of the beans and the chopped green chilis. Stir well and season with salt and pepper to taste - yep, that means taste it. Add in your hamburger and veggie mix and mix well. Make sure to add any of the juices that have accumulated in the frying pan.
Add in the barbecue sauce, ketchup, molasses, brown sugar, mustard, apple cider vinegar, worcestershire sauce, tabasco, chili powder, garlic powder, thyme. Mix well. Taste and then add salt and pepper to taste again.
Bake in oven at 350 until thickened and bubbling throughout (check at an hour and 10 minutes) recheck every 5 minutes until bubbling through. When done, allow to rest for 10 minutes before serving. Garnish with green onion.