How Long to Cook a Frozen Beef Roast in the Oven for Perfect Results

A frozen beef roast may seem daunting to cook, but with the right technique, you can make a juicy, flavorful roast straight from the freezer. Whether you forgot to thaw the meat or want to save time, cooking a frozen beef roast in the oven is absolutely doable.

Follow this complete guide to learn about oven temps cook times, recipe tips, and more for creating tender, delicious home-cooked beef roast dinners from frozen.

Benefits of Cooking Frozen Beef Roast

Cooking beef roast straight from the freezer offers several advantages:

  • Saves time – No need to remember to thaw. Just pop it right into the oven.

  • Preserves moisture – The ice crystals help keep meat juicy as it slowly defrosts and cooks,

  • Enhances flavor – Slower cooking at lower oven temps tenderizes and concentrates flavors.

  • Adds convenience – Always have roast beef ready when a craving hits by keeping some in the freezer,

  • Allows flexibility – Cook smaller roasts from frozen as needed instead of thawing large cuts.

How Long to Cook a 2-3 lb Frozen Roast

For a 2-3 pound frozen beef roast, plan on the following oven cook times:

  • At 200°F: 6-8 hours
  • At 250°F: 4-6 hours
  • At 300°F: 3-4 hours

The oven temperature makes a significant difference in the time required. The lower the heat, the slower the meat cooks. Higher heat speeds it up but can dry out the roast if not careful.

Key Tips for Cooking Frozen Roast Beef

Follow these tips to achieve tender, juicy roast beef cooked straight from frozen:

  • Low and slow is best – Cook at 200-300°F to allow meat to defrost gently as it cooks through.

  • Use a meat thermometer – Cook until center reaches 135-140°F for medium rare doneness.

  • Cover loosely in foil – Helps retain moisture as roast cooks.

  • Add extra seasoning – Frozen meat needs a little more salt, pepper, herbs to infuse flavor.

  • Let roast rest – Allow meat to sit 15-30 minutes after cooking for juices to absorb.

  • Sear or broil at the end (optional) – Quickly brown exterior for crispy crust.

Step-By-Step Instructions for Oven Roast Beef

  1. Season roast all over with salt, pepper, garlic powder, rosemary, thyme.

  2. Place roast fat side up on a wire rack in a roasting pan.

  3. Cover loosely with foil, leaving space for steam to escape.

  4. Cook at 250-300°F until internal temp reaches 135°F for medium rare.

  5. Remove foil last 30 minutes if crisping the exterior.

  6. Let rest 15-30 minutes before slicing to serve.

Sample Recipe: Frozen Roast Beef with Gravy


  • 3 lb frozen beef roast
  • 1 tablespoon oil
  • Salt, pepper, garlic powder
  • 2 cups beef broth
  • 2 tablespoons cornstarch


  1. Pat roast dry and rub with oil. Season all over with salt, pepper, garlic powder.

  2. Place roast on a wire rack set in a roasting pan. Cover loosely in foil.

  3. Cook at 275°F for about 4 hours until internal temp reaches 135°F.

  4. Transfer roast to a platter, tent foil and let rest 30 minutes.

  5. Make gravy – whisk cornstarch into broth, pour drippings into broth, simmer until thickened.

  6. Carve roast and serve drizzled with gravy.

Cooking a tasty roast beef dinner from frozen is easy when you use a low oven temp and follow the tips above. Be sure to use a meat thermometer for perfectly cooked results. The next time you forget to thaw roast or find a good deal on frozen beef, you’ll know exactly what to do.

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Can you cook beef from frozen in the oven?

Cooking frozen steak in the oven is also a reliable method that produces consistent and delicious results. With proper seasoning and monitoring of the internal temperature, you can enjoy a tender, flavorful steak without the need for thawing.

Is it OK to slow cook a frozen roast?

It is best to thaw meat or poultry before putting it into a slow cooker. Frozen pieces will take longer to reach a safe internal temperature and could possibly result in foodborne illness. Frozen or partially frozen foods can also cool everything else in the slow cooker.

How long to cook a 2 lb frozen pork roast?

As a general guideline, it can take approximately 25 to 30 minutes per pound (0.45 kg) to cook a frozen pork roast in the oven. However, it is always important to rely on an accurate meat thermometer to ensure it reaches a safe internal temperature.

What temperature to cook roast beef?

Roast beef cooking time: 50 minutes to 1 hour 20, depending on how well done you like it. Roast beef temperature: Heat the oven to 240C/220C fan/gas 9 for the first 20 minutes of cooking, then lower it to 190C/170C fan/gas 5 for the remainder.

How do you cook frozen roast beef?

Remove any packaging from the frozen roast beef and place it on a cutting board or a rack set inside a roasting pan. Pat the meat dry using paper towels to remove any excess moisture. Season the roast beef with your favorite herbs and spices such as salt, pepper, garlic powder, or rosemary. These will enhance the flavor of the meat as it cooks. 3.

How long does it take to cook a frozen roast?

Cooking a frozen roast in the oven typically takes about 50% longer than cooking a thawed roast. For a 3-pound roast, the average cooking time is approximately 2 hours and 15 minutes at 350°F. To ensure the roast is cooked through, use a meat thermometer to check the internal temperature.

How long does it take to cook a frozen first beef?

So, how many minutes per pound does it take to cook a frozen first beef? Generally speaking, cooking frozen roast beef takes about 50% longer than the correct cooking time for unfrozen roast beef. So, for medium-rare roast beef, you cook for about 30-35 minutes per pound, for medium roast beef, you cook for about 40-45 minutes per pound.

How to cook a frozen roast in the oven?

Follow this guide to learn how to cook a frozen roast in the oven like a pro! Preheat your oven – Start by preheating your oven to 325°F (163°C). Preheating the oven ensures that your roast cooks evenly. Prepare the roast – Remove the frozen roast from its packaging and place it on a cutting board.

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