Beef Tenderloin Salad with Tomatoes and Avocado

To prepare the beef in advance, cook the meat in the sous vide immersion circulator as instructed below, then remove the bag from the circulating water and place into a large bowl of ice water for 20 minutes. Remove the bag from the ice water and refrigerate up to overnight. To reheat, preheat the water in the immersion circulator to 120deg.F and place the bag of beef in the water for 45 minutes. Remove the bag from the water and continue as directed.