Cooked lamb roast will usually stay good for 3 to 5 days in the fridge and 3 months in the freezer.Click to see full answer. Also question is, how long will lamb shanks keep in fridge? 3 to 4 days One may also ask, how can you tell if Lamb is spoiled? The best way is to smell and look at the lamb chops: signs of bad lamb chops are a sour smell, dull color and slimy texture; discard any lamb chops with an off smell or appearance. Hereof, how long does raw lamb last in fridge? Cold Food Storage Chart Food Type Refrigerator (40 °F or below) Hamburger and other ground meats Hamburger, ground beef, turkey, veal, pork, lamb, and mixtures of them 1 to 2 days Fresh beef, veal, lamb, and pork Steaks 3 to 5 days Chops 3 to 5 days Roasts 3 to 5 days Can you eat lamb past its use by date?It will be absolutely fine – especially if it’s slow cooked through. Use by dates are for guidance only. So much perfectly good food gets wasted because of them. If it smells fine it would be a waste of perfectly good lamb to bin it!