Cut the beef, pork and bacon in small pieces. Place everything in a large container or pot, covered with a lid. Add the onion, sweet pepper, green pepper, green onion and garlic. Season with oregano, salt, cumin, powdered garlic, ground pepper, cooking wine and vegetable oil. Mix well and let macerate overnight, preferably in the fridge. Every now and then stir again with a wooden spoon and cover the pot so the flavor concentrates more.