READ INSTRUCTIONS THOROUGHLY. Do not thaw. Keep frozen until ready to cook. FOR FOOD SAFETY AND QUALITY, FOLLOW THESE INSTRUCTIONS. FOOD MUST BE COOKED TO AN INTERNAL TEMPERATURE OF 165°F AS INDICATED BY A FOOD THERMOMETER. Appliances vary; adjust cook time accordingly. Remove bag and 3 packages of beef from box. Carefully open bag and remove 2 sauce pouches. Return bag containing pasta and mushrooms to freezer. Open beef packages and place beef in bottom of slow cooker. Open sauce pouches, and place sauce on top of beef. Place lid securely onto slow cooker to minimize moisture loss. Select power level and cook time (see chart). With 1 hour remaining, add frozen pasta and mushrooms to slow cooker and stir thoroughly. Replace lid and cook for 1 hour. Stir and serve. If a creamier sauce is desired, stir in ½ cup sour cream at the end of cooking.