how long does it take to cook a 2lb roast beef rare in the oven
How long you would cook a 2.2 pound beef roast depends upon how you  like it cooked. For a rare beef roast, cook at 200 degrees  Celsius/390 degrees Fahrenheit for 30 minute â¦ s.For a medium beef  roast, cook for 45 minutes or for well done meat, cook for an hour. for a 2 1/2 lb roast beef:   Preheat your oven to high 400-425. put frozen roast in for 15-25min. Searing this way on the outside will seal in juices. Reduce the heat â¦ to 300 and cook abt..
Photo Credit Lawrence Roberts/Demand Media. Transfer the saute pan to the oven and cook for 20 to 30 minutes, or until a meat thermometer inserted in the roast registers 145 F (the temperature at which beef is safe to eat, according to the USDA).The meat will be medium well-done at this temperature. 2-lb. roast isn't a large roast, and it cooks quickly. How you cook it depends on the type of roast. Tenderloin can be roasted quickly or grilled because it's a naturally tender cut of meat.