Our Vision, Job, and Paradigm. The Job of the County of San Bernardino is to create a county in which those who reside and invest can prosper and achieve well-being.
Quick Answer. It takes 9 to 10 hours to cook a 3-pound beef top round roast in a Crock-Pot at the low setting. The roast only requires about 5 hours of cooking time at the high setting, but this tough cut of meat isn't recommended for cooking on the high setting. The faster cook time and higher temperature doesn't break down the tough meat fibers and leaves the roast tough.
How long do you cook a 3 lb chicken? At 350 degrees F, you should roast a whole (thawed)chicken for 20  minutes per pound, plus 15 more minutes. If stuffed, cook the  chicken for an additional 15 minutes. So yo â¦ u would cook your 3 lb.  chicken at 350 degrees F for 1 hour and 15 minutes.t 350oF, you should roast a whole (thawed)chicken for  20 minutes per pound, plus 15 more minutes. If stuffed, cook the  chicken for an additional 15 minutes.