Dice the 1,500g mixed pork and beef, 2 red peppers, and spring onions. Press 2 cloves garlic.
Transfer the diced meat, red peppers, and spring onions to a large roasting pan. Add all remaining ingredients: the tomato peppers from the jar, 4 bottles steak sauce, 1 bottle barbecue sauce, 2 cups crème fraîche, 1 cup cream, the pressed garlic, 80 ml Metaxa, 250 ml red wine, and 50 ml soy sauce. Stir well to combine. Cover and refrigerate overnight.
Preheat your oven to 200°C (392°F). Place the roasting pan in the oven and stew for 60-80 minutes, until the pork reaches an internal temperature of 63°C (145°F).