This recipe is part of our 6th Costco Meal Plan: 20 Slow Cooker Freezer Packs from Costco for $150!

You want your house to smell like a gourmet restaurant…make this!

There’s something about the way the beef and mushrooms cook together…mmmmmmmmm…

This is a fantastically delicious recipe for beef roast that has just a few ingredients and can be made with quite a few modifications, like:

Use minced onion instead of real onions.
Add the carrots in right before you cook it and not into the freezer pack. I have heard from some that baby carrots don’t do well after freezing and then slow cooking. {We have not had that problem…so not sure if it’s a slow cooker cooking issue, or a baby carrot brand issue. Or what.} Nonetheless, you can leave the carrots out of the bag and add them into the slow cooker when you make them. Entirely up to you!
Gluten Free modifications: Add quartered potatoes in before you cook it (not into the freezer pack!)
Whole 30 or Paleo modifications: Serve with mashed sweet potatoes in place of the dinner rolls.
One Dish Dinner idea: Add quartered potatoes in before you cook it (not into the freezer pack!) and it’ll all cook in one dish for you!
Oh, and you can brown the roast in a skillet or saucepan before you add it to the slow cooker. I don’t usually do that because the slow cooker does a fantastic job of softening the meat 🙂

However you make it, the beef and mushrooms are the star of this show!

Serve with side of bread and other veggies or just the carrots!

This is like a ‘build your own adventure’ recipe!

Note: I’ve written the recipe below to be based on the shopping list for the 6th plan in the 20 Meals from Costco for $150 series.

Slow Cooker Beef Roast with Mushrooms & Carrots

You want your house to smell like a gourmet restaurant...make this!

There's something about the way the beef and mushrooms cook together...mmmmmmmmm.

Prep Time10

Cook Time8

Servings - servings

Add the beef roast to the base of the slow cooker. Season with salt, pepper and garlic powder. Add the onions , mushrooms and carrots around and on top of the roast. Toss in a little more salt and pepper over the veggies.
Set slow cooker on low and cook for 8 hours, or high for 6 hours. If cooking from partially frozen, you'll need to cook on low for 8 to 10 hours, depending on how frozen the pack is when you start cooking it.
To pack into gallon size freezer baggie: Label. Then, follow the same directions in the first 2 bullets. Remove as much air as you can and seal. Freeze up to 6 months in your fridge freezer or 12 months in a deep freezer.
Tothaw, place the bags in the fridge overnight. Or quick thaw in a bowl of warm water.