How To Cook A Frozen Beef Roast In The Oven

How To Cook A Frozen Beef Roast In The Oven (Updated)

Last Updated on March 19, 2024 by Shari Mason

Don’t be intimidated by the thought of preparing a frozen beef roast – I’ve got you covered! Through my experience in home cooking, I’ve become skilled in preparing numerous frozen roasts. By following a few simple steps, you can create a mouthwatering and juicy result.

Prepare to impress your guests as I share with you how to cook a frozen beef roast in the oven. Keep reading.

Complete Guide on How To Cook A Frozen Beef Roast In The Oven

frozen roast beef on a baking tray
  1. The first thing I do is adjust the cooking time based on the size of my roast. Based on my experience, a small roast will take about 15 minutes per pound, while a larger roast will take about 25 minutes per pound.
  2. Once you’ve determined the cooking time, preheat your oven to 350 degrees Fahrenheit.
  3. Place the frozen beef roast on a rack in a roasting pan.
  4. Then, bake the roast in the preheated oven until it reaches an internal temperature of 145 degrees Fahrenheit (for medium-rare) or 160 degrees Fahrenheit (for medium).
  5. Once the roast is cooked, remove it from the oven and let it rest for at least 10 minutes before slicing and serving. This will allow the juices to redistribute throughout the meat, resulting in a juicier and more flavorful dish.


Cooking Guide for Frozen Beef Roast

DonenessInternal Temperature Cooking Time Duration
Rare120 °F
3 – 4 hours until it reaches the desired internal temperature 
Medium Rare130-135 °F
Perfectly Medium 135-145 °F
Medium Well145-155 °F
Well 155 or higher °F

Cooking Frozen Beef Roast In Slow Cooker

As a seasoned home cook, I learned that cooking a frozen beef roast in a slow cooker [1] is possible and can be downright delicious. My trick is to cook the roast on a low setting for a longer period of time.

This will ensure that the beef [2] is cooked thoroughly without drying out. 

Check the internal temperature with a meat thermometer [3] to determine how long to cook the roast. The roast should be cooked to an internal temperature of at least 145 degrees Fahrenheit. 

“Transform frozen beef into a savory masterpiece with oven magic.”

Eat Pallet Restaurant & Food Advice

Another tip I can give is to brown the roast before placing it in the slow cooker. This will give it a nice flavor and prevent the outside from becoming overcooked. Browning can be done in a pan on the stovetop or in the oven. 

Simply place the roast in a hot pan or oven and cook it for a few minutes on each side. Then, add your favorite seasonings and place the roast in the slow cooker with enough liquid to cover it halfway.

Cook on low for 8-10 hours or until the meat is cooked through. 

For best results, be sure to check the internal temperature of the roast before serving.

How To Cook A Frozen Roast In A Convection Oven

steak on a turbo convection oven
  1. Preheat the oven to the recommended temperature for cooking meat.
  2. Place the frozen roast on a rack in the oven and Cook according to the manufacturer’s instructions.
  3. Use a meat thermometer to ensure that the roast is cooked to your desired level of doneness.
  4. Let the roast rest for a few minutes before carving and serving.

Read: How To Reheat Prime Rib In The Air Fryer?

Tips On How To Make The Best Beef Roast

To ensure that your roast is delicious and juicy, there are a few key tips to follow. 

First, choose a cut of beef that has plenty of marbling. This fat will help to keep the meat moist as it cooks. 

“Fat gives things flavor.”

Julia Child, American Cook

Second, season the roast generously with salt and pepper. This will help create a flavorful crust outside of the meat [4]. 

Finally, cook the roast at a low temperature until it reaches the desired doneness. Allowing the meat to cook slowly will prevent it from becoming tough or dry. 

By following these tips, you can be confident that your beef roast will be perfectly cooked and flavorful.

Read: Can You Cook Steak In A Toaster Oven?

Cooking Frozen Beef Roast in the Oven

Oven Baked Beef Roast

 Prep Time: 10 minutes

 Cook Time: 3 – 4 hours 


  • 1 frozen beef roast (of your choice)
  • Salt and pepper (to taste)
  • Preferred seasonings and herbs (such as garlic powder, rosemary, or thyme)


Preheat the oven to 325°F (163°C). Allow it to fully preheat before placing the roast inside. Remove any packaging from the frozen beef roast. Place the roast on a roasting rack in a shallow roasting pan, ensuring good air circulation around the meat. 

Season the roast generously. Place the roasting pan with the seasoned roast in the preheated oven. Cook uncovered.

After the initial cooking time, start checking the internal temperature of the roast using a meat thermometer. Once the roast reaches your preferred internal temperature, remove it from the oven and cover loosely with foil. Allow the roast to rest for 10 to 15 minutes.

Serving: 8


u003cstrongu003eWhat temperature do you cook frozen roast beef?u003c/strongu003e

We would suggest cooking your frozen roast beef at around 325 degrees Fahrenheit. You can cook frozen roast beef at any temperature, but we recommend cooking it at a lower temperature to ensure it cooks evenly.

u003cstrongu003eCan you cook a frozen beef roast without thawing?u003c/strongu003e

Yes, you can cook a frozen beef roast without thawing. It will just take a little bit longer to cook. I would recommend adding about 30% more cooking time to the recipe.

u003cstrongu003eHow do you defrost a beef roast quickly?u003c/strongu003e

To defrost a beef roast, you can submerge it in cold water for a few minutes. Another is to place it in a sealed plastic bag and then put it in icy water.u003cbru003eu003cbru003eA third option is to microwave the roast on low power for about 5-7 minutes or until it’s thawed.

u003cstrongu003eDoes frozen beef taste as good as fresh beef?u003c/strongu003e

The taste of the beef depends on how you cook it. Frozen beef fares better when cooked slowly, whereas fresh beef should be cooked quickly at a high temperature to avoid bacteria growth. u003cbru003eu003cbru003eSo if you’re cooking frozen beef in a stew or some other slow-cooking dish, it will likely taste just as good as fresh beef. u003cbru003eu003cbru003eBut fresh beef will taste better if you’re grilling a steak or some other quick-cooking dish.

Final Thoughts

If you don’t have time to thaw a beef roast, cooking a frozen beef roast in the oven is the way to go.

This method will take about 50% longer than cooking a thawed roast, so be sure to factor in additional cook time when you’re planning your meal. 

Before cooking, I usually season the frozen beef roast with salt, pepper, and other desired herbs or spices. Place it on a rack in a roasting pan and put it in a preheated oven set to 275 degrees Fahrenheit. 

Cook until the roast’s internal temperature reaches 140 degrees Fahrenheit for medium-rare meat or 160 degrees Fahrenheit for well-done meat. Let the roast rest for at least 10 minutes before slicing and serving.


Shari Mason

1 thought on “How To Cook A Frozen Beef Roast In The Oven (Updated)”

  1. We read all about the long cooking times, and were worried for no reason. Here is the bottom line: For us. 10.3 lb rib roast. took it from the freezer, 24 hours in advance, put it in the fridge. Did not thaw at all over the 24 hours, maybe the outer 1/4 “. Our meat thermometer did not go beyond the 1/4 ” and registered 30 degrees on the outside.

    Put it in at 6:20 am (for a mid afternoon meal), at 450 degrees. At 7:00 am, we dropped the temp to 325 and was able to insert the probe all the way to the middle by 7:30. We then watched the temperature rise as it normally would and the whole thing was done (117 degrees) at 10:04. By 10:30, it was 128 degrees.

    Of course now we had a done Prime Rib and had to rush everything. Our meal went on the table at 12:00. We let the Prime Rib sit in its juices for the 90 minutes. It was perfect. The best texture, best flavor, best color, PERFECT, Medium-Rare!. Going forward, we will make it frozen every time.

Leave a Comment

Your email address will not be published. Required fields are marked *