Mashed Potato Beef Casserole–ground beef cooked with onions, mushrooms, carrots and seasonings in the Instant Pot. It’s spooned over buttery mashed potatoes made at the same time in the same pot.
Mashed Potato Beef Casserole
This is one of those dinners that totally hits the spot. It’s made with easy ingredients that I usually have on hand. The genius of this recipe is cooking the potatoes right in the steamer basket* above the meat mixture, so everything comes together in one pot with minimal cleanup. If you want an easy weeknight dinner that feels like classic comfort food without a ton of dishes, this one’s a keeper. Skyler loved this after he got his wisdom teeth taken out and needed some calories after not eating all day.
Ingredients/Substitution Ideas
- Lean Ground Beef–or ground turkey
- Onion–yellow onion or white onion
- Mushrooms
- Black Pepper
- Garlic Powder
- Worcestershire Sauce
- Beef Broth–or water and Better Than Bouillon beef base
- Carrots
- Potatoes–russets or red
- Melted Butter
- Milk–or evaporated milk
- Salt and Pepper–to taste
- Cornstarch
Steps
Turn Instant Pot to saute setting. When display says HOT add in the ground beef and break it up. Add in the onions and mushrooms. Brown for 5 minutes. Drain off excess grease. Stir in the salt, pepper, garlic powder and Worcestershire sauce.
Pour in the broth and scrape bottom of pot so that nothing is sticking. Turn off Instant Pot.
Add in the carrots. Place potatoes in a steamer basket and set the steamer basket on top of the meat.
Cover Instant Pot and secure the lid. Make sure valve is set to sealing. Set manual/pressure cook button to 5 minutes. When time is up move valve to venting and remove the lid.
Move the steamer basket out of the pot and dump potatoes into a bowl. Mash the potatoes. Stir in the melted butter, milk and then salt and pepper to taste.
Stir 1 Tbsp cornstarch together with 1 Tbsp cold water. Turn Instant Pot to saute setting. Stir the cornstarch slurry into the pot to thicken the meat mixture. Once thickened turn off the Instant Pot.
Scoop potatoes onto each plate and top with the meat mixture. Salt and pepper to taste.
Notes/Tips
- Serve with a side of steamed green beans and warm dinner rolls.
- This can be gluten free if you use gluten free Worcestershire sauce.
- Make this lower carb by using cauliflower florets instead of potatoes.
- Try adding in some frozen peas for more veggies.
- I used my 6 quart Instant Pot*. You can also make this in an 8 quart pot. I used my silicone steamer basket*.
- Store leftovers in an airtight container* in the refrigerator for up to 4 days or in the freezer for up to 3 months.
- Other recipes you can make with Worcestershire are Porcupines in a Pot and Instant Pot Wisconsin Special.
Did you know you can filter the recipes on my website to search by meat type, IP or Crockpot, low carb, gluten free, etc.? Use the filter to find exactly what you are looking for.
Mashed Potato Beef Casserole
- Prep Time: 25 minutes
- Total Time: 25 minutes
- Yield: 6 servings 1x
Description
Ground beef cooked with onions, mushrooms, carrots and seasonings in the Instant Pot. It’s spooned over buttery mashed potatoes made at the same time in the same pot.
Ingredients
- 16 oz lean ground beef
- 1 cup diced onion
- 4 oz chopped mushrooms
- 1 tsp kosher salt
- 1 tsp black pepper
- 1 tsp garlic powder
- 1 T Worcestershire sauce
- 2 cups beef broth
- 2 carrots peeled and cut into thick slices
- 3 lbs potatoes, peeled and cubed
- 4 Tbsp melted butter
- 1 cup milk
- Salt and pepper
- 1 Tbsp cornstarch
Instructions
- Turn Instant Pot to saute setting. When display says HOT add in the ground beef and break it up. Add in the onions and mushrooms. Brown for 5 minutes. Drain off excess grease. Stir in the salt, pepper, garlic powder and Worcestershire sauce.
- Pour in the broth and scrape bottom of pot so that nothing is sticking. Turn off Instant Pot.
- Add in the carrots. Place potatoes in a steamer basket and set the steamer basket on top of the meat.
- Cover Instant Pot and secure the lid. Make sure valve is set to sealing. Set manual/pressure cook button to 5 minutes. When time is up move valve to venting and remove the lid.
- Move the steamer basket out of the pot and dump potatoes into a bowl. Mash the potatoes. Stir in the melted butter, milk and then salt and pepper to taste.
- Stir 1 Tbsp cornstarch together with 1 Tbsp cold water. Turn Instant Pot to saute setting. Stir the cornstarch slurry into the pot to thicken the meat mixture. Once thickened turn off the Instant Pot.
- Scoop potatoes onto each plate and top with the meat mixture. Salt and pepper to taste.
- Category: Beef
- Method: Instant Pot
More beef and potato recipes…
Hamburger Potato Casserole
A beef and potato casserole made with layers of tender sliced potatoes, seasoned ground beef, and creamy mushroom sauce. It’s cooked in your Instant Pot or slow cooker and topped with melty cheddar cheese.
Loaded Potato and Meatloaf Casserole
A hearty layer of meatloaf with creamy mashed potatoes and cheddar on top. Everything you love about a classic meatloaf dinner baked into one easy dish.
Ranch Beef Pot Roast
With only 6 ingredients and your Instant Pot or slow cooker you can make this tender roast with potatoes, carrots and savory gravy.
Easy Hamburger Soup
An Instant Pot or slow cooker beef and vegetable soup that’s loaded with ground beef, tomatoes, hearty potatoes and lots of veggies for a simple, satisfying dinner.
*Karen Petersen is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to amazon.com.
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