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Set-it-and-forget-it weeknight meal with chuck roast, rosemary (use fresh if you have it!), vegetables, and mashed cauliflower on the side.
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Rosemary Pot Roast with Mashed Cauliflower

Set-it-and-forget-it weeknight meal with chuck roast, rosemary (use fresh if you have it!), vegetables, and mashed cauliflower on the side.
Prep Time15 minutes
Cook Time6 hours
Course: Dinner, One Pan
Keyword: instant pot chicken soup, slow cooker
Servings: 4
Author: Ruthy Kirwan

Ingredients

For the pot roast:

  • 2 pounds chuck roast
  • 1 tablespoon dried rosemary
  • 1 tablespoon kosher salt
  • 1 yellow onion diced
  • 1 cup red wine
  • 4 tablespoons butter
  • 1 cup beef broth
  • 4 carrot diced

For the mashed cauliflower:

  • 2 cups riced cauliflower

Instructions

Prep Ahead:

  • Sear the pot roast as instructed, then transfer to a resealable bag or container.
  • Add to the bag/container with the pot roast the remaining pot roast ingredients.
  • If making the mashed cauliflower from scratch, blitz until riced, then transfer to a resealable bag or container.

Prepare From Prepped:

    Slow Cooker, Instant Pot, and Stovetop Instructions:

    • Transfer the contents of the pot roast bag or container to the slow cooker, Instant Pot, or stovetop and cook according to the “Make From Fresh” instructions in the recipes.
    • Cook the riced cauliflower according to the instructions in the recipes.

    Make From Fresh:

      Slow Cooker Instructions:

      • Heat a large saucepan with 3-4 tablespoon olive oil.
      • Rub the roast all over with salt, then sear on all sides in the pan, until each side of the roast is deep brown.
      • Transfer the roast to the slow cooker and add the remaining ingredients.
      • Cook on low for 6 hours, high for 4 hours.
      • Before the pot roast is served, bring a pot of salted water to a boil.
      • Add the riced cauliflower and cook, stirring so all the cauliflower is in the water. Cook for about 4-5 minutes, then drain, reserving ½ cup of the boiled water.
      • Transfer the cooked cauliflower to a food processor or blender and puree, adding the water a litle at a time, until it is smooth and mashed.
      • Season with salt and pepper and serve on the side of the cooked pot roast.

      Instant Pot Instructions:

      • Heat a large saucepan with 3-4 tablespoon olive oil.
      • Rub the roast all over with salt, then sear on all sides in the pan, until each side of the roast is deep brown.
      • Transfer the roast to the Instant Pot and add the remaining ingredients.
      • Secure the lid and cook on High Pressure for 3 hours with a natural pressure release.
      • Once the time is up and the pressure is starting to come down, start the cauliflower: , bring a pot of salted water to a boil.
      • Add the riced cauliflower to the salted water and cook, stirring so all the cauliflower is in the water. Cook for about 4-5 minutes, then drain, reserving ½ cup of the boiled water.
      • Transfer the cooked cauliflower to a food processor or blender and puree, adding the water a litle at a time, until it is smooth and mashed.
      • Season with salt and pepper and serve on the side of the cooked pot roast.

      Stovetop Instructions:

      • Heat a large 8qt pot with with 3-4 tablespoon olive oil.
      • Rub the roast all over with salt, then sear on all sides in the pot, until each side of the roast is deep brown.
      • Add the remaining ingredients to the pot and turn the heat to low.
      • Cook for 4-5 hours, until the meat shreds easily with a fork.
      • Before the pot roast is served, bring a pot of salted water to a boil.
      • Add the riced cauliflower and cook, stirring so all the cauliflower is in the water. Cook for about 4-5 minutes, then drain, reserving ½ cup of the boiled water.
      • Transfer the cooked cauliflower to a food processor or blender and puree, adding the water a litle at a time, until it is smooth and mashed.
      • Season with salt and pepper and serve on the side of the cooked pot roast.

      Notes

      This recipe calls for dried rosemary, but if you’ve just got fresh on hand, divide the amount in half as fresh rosemary is a stronger flavor. The instructions below walk you through making for mashed cauliflower, but you can swap that out for mashed potatoes, egg noodles, or go straight for the sandwich.