The cooking time will vary depending on numerous factors, including the starting internal temperature of the beef. Therefore, allow the beef to rest at room temperature for 20-30 minutes before roasting and use an instant-read thermometer to check for doneness. For medium-rare, remove from oven at 140°F. The temperature will rise to 145°F as it rests. Rosemary Garlic Beef Tenderloin Ingredients: 3 T. coconut oil, divided 16 oz. white mushrooms, sliced 2 large shallots, sliced 3 T. fresh rosemary leaves, chopped 3 T. garlic, minced Sea salt and black pepper, to taste 3 lbs. beef tenderloin roast 1 large red ...read more →