Add 2 tablespoons olive oil to a large heavy pot with a lid over medium-high heat. Add onions and saute until translucent, about 4 minutes. Use a slotted spoon and remove to a bowl. Heat up the pot again and add the remaining 2 tablespoons olive oil. Add the ground beef and stew meat and brown until the chunks are no longer pink inside, about 5 minutes. Add the chili powder, salt, cumin, cinnamon and pepper and stir to combine. Pour in the lager and stir for a minute or two.
Add the crushed tomatoes, garlic, tomato paste, beef stock and the 4 types of beans. Stir to combine and bring to a boil.
Cover and reduce heat to simmer for 2 hours. Ladle into bowls and top with toppings of choice.
Recipe by Farmgirl Gourmet at https://www.farmgirlgourmet.com/2015/10/meaty-4-bean-chili.html