The thing about using a slow cooker is that its incredibly easy and idiot proof. When i make roast i just put a 3 lb. roast, sprinkled with seasoning salt and salt and pepper to taste. 4 cups of water, baby carrots and onions. Then you have to let it cook for about 8 to 9 hours and you will have the most tender and delicious roast you've ever had in your life.