In a large pot, heat olive oil. Saute onion and bell peppers unti onions become translucent and peppers soften. Add the turkey and crumble. If there is excess fat, drain. Add chili powder, grill season, cumin, and Worcestershire. Add beer and deglaze the pan, scraping up the drippings and cooking off the alcohol. Add the tomato and barbecue sauces. Simmer for ten minutes. Spoon into bowls and top with cheese and other garnishes.