Answer:
There are lots of ways to tenderise your meat. If you are marinading your meat or making a caserole then citrus juices (lemon, lime, orange) and alcohol (Wine, spirits and beer or vinegar) will help to tenderise your meat (be weary of how much vinegar you use as it can destroy the flavour). Also, if you are making a caserole, the slower you cook the meat the more tender it will be at the end. Try using a slow cooker.