Heat 1 more Tbsp olive oil in a large skillet over high heat and pan fry the pork until browned, sprinkling with S&P while it cooks, about 12 minutes. Transfer meat to a slow cooker and stir in the roasted vegetables. Mix in the tomatoes, garlic, beef bouillon cube, beer, oregano, parsley, cumin and chili powder. Set cooker on Low, cover, and cook for 4-6 hours.