100 Year Casserole–an old fashioned beef and potato casserole that’s been reimagined for your Instant Pot.
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100 Year Casserole
This is an old fashioned ground beef and potato casserole recipe that has supposedly been around for 100 years. The original version had fewer ingredients but I decided to add in a few extra ingredients (like (worcestershire, garlic powder, smoked paprika and green chiles) to give it a little more flavor. I took the original stove/oven recipe and made it all in my Instant Pot. Potatoes cook very quickly in the Instant Pot…only a 5 minute pressure cook time! Greg was going crazy over this dinner, he loved it so much. I think you’ll love it too! Enjoy!
Ingredients/Substitution Ideas
- Lean ground beef–or ground turkey
- Onions–yellow, white
- Kosher salt
- Black pepper
- Garlic powder
- Smoked paprika
- Worcestershire sauce
- Chicken broth–or beef broth
- Red potatoes–or yukon gold
- Diced green chiles–I used mild
- Cornstarch
- Evaporated milk–or half and half
- Sharp cheddar–or provolone cheese
Steps
Turn Instant Pot to saute setting. When display says HOT add in the beef and break it up. Add in the onions. Brown for about 5 minutes. Drain off excess grease. Stir in the salt, pepper, garlic powder, paprika and Worcestershire.

Pour in the broth and scrape bottom of pot so that nothing is sticking. Turn off Instant Pot.
Dump in the potatoes and green chiles. Don’t stir.

Cover Instant Pot and secure the lid. Make sure valve is set to sealing. Set the manual/pressure cook button to 4 minutes. When time is up move valve to venting and remove the lid.

In a small bowl stir together the cornstarch and milk until smooth. Turn Instant Pot to saute setting. Stir the slurry into the pot until thickened. Turn off Instant Pot. Salt and pepper to taste.

Sprinkle the cheese evenly over the top.

If you have an air fryer lid place it on top and bake at 350 for 5 minutes. If you don’t have an air fryer lid then place the stainless steel liner in the oven and bake at 350 for 10 minutes.

Serve and enjoy!

Notes/Tips
- Serve with some greens like green beans, asparagus, salad or spinach.
- This recipe can be gluten-free if you use gluten free Worcestershire sauce.
- I used my 6 quart Instant Pot*. You can also make this in a 3 or 8 quart pot.
- Store leftovers in an airtight container* in the refrigerator for up to 5 days or in the freezer for up to 3 months.
- Other recipes you can make with diced green chiles are Instant Pot Cowboy Spaghetti and Instant Pot Mexican Lasagna.
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100 Year Casserole
- Prep Time: 20 minutes
- Cook Time: 4 minutes
- Total Time: 24 minutes
- Yield: 4 servings 1x
Description
An old fashioned beef and potato casserole that’s been reimagined for your Instant Pot.
Ingredients
- 1 pound lean ground beef
- 1 cup diced onions
- 1 tsp kosher salt
- 1/2 tsp black pepper
- 1 tsp garlic powder
- 1/4 tsp smoked paprika
- 1 Tbsp Worcestershire sauce
- 1/2 cup chicken or beef broth
- 4 medium red potatoes, cut into half inch cubes
- 1 (4 oz) can diced green chiles
- 1 Tbsp cornstarch
- 1/4 cup evaporated milk or half and half
- 1 cup shredded sharp cheddar
Instructions
- Turn Instant Pot to saute setting. When display says HOT add in the beef and break it up. Add in the onions. Brown for about 5 minutes. Drain off excess grease. Stir in the salt, pepper, garlic powder, paprika and Worcestershire.
- Pour in the broth and scrape bottom of pot so that nothing is sticking. Turn off Instant Pot.
- Dump in the potatoes and green chiles. Don’t stir.
- Cover Instant Pot and secure the lid. Make sure valve is set to sealing. Set the manual/pressure cook button to 4 minutes. When time is up move valve to venting and remove the lid.
- In a small bowl stir together the cornstarch and milk until smooth. Turn Instant Pot to saute setting. Stir the slurry into the pot until thickened. Turn off Instant Pot. Salt and pepper to taste.
- Sprinkle the cheese evenly over the top. If you have an air fryer lid place it on top and bake at 350 for 5 minutes. If you don’t have an air fryer lid then place the stainless steel liner in the oven and bake at 350 for 10 minutes.
- Serve and enjoy!
- Category: Beef
- Method: Instant Pot
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More Instant Pot Ground Beef Recipes…
Instant Pot Ground Beef Divan
Ground beef with broccoli, a creamy sauce, spaghetti and cheese. An easy weeknight meal you can make quickly in your Instant Pot!
Instant Pot 5-Ingredient Ground Beef Casserole
An easy ground beef and potato dinner with only a handful of ingredients!
*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.



My adult son and I love this recipe. We top it with fried eggs and he uses siracha sauce. Quick and easy. It’s for dinner again tonight.
Love the fried egg and sriracha idea. Perfect repeat dinner 😊
Sounds great!!!…. Do you have an OVEN RECIPES???
a few here and there! Here are my “other methods” recipes: https://www.365daysofcrockpot.com/recipes/?fwp_method=other-methods
I was actually hoping this would have crockpot directions too. Although it would probably be easy enough to figure out!
I agree with you! why are all of these for instance pot only? we don’t want to buy one and always look for slow cooker recipes.
Hi, Karen. Could I sub regular old russet potatoes? Thanks!
yes you can!
Not everyone has an Instapot. I use a crockpot. I wish your recipes were made for everyone.
Hello Karen. I subscribed to your site probably a little over a year ago for slow cooker recipes. All you post is for an instant pot without even adding directions for a slow cooker. I really like the idea of this recipe so I’m going to attempt it in a pan on the stove using common sense so the potatoes aren’t rocks when the dsh is complete! Good luck to me!!!
Karen, this sounds fantastic. I cannot wait to try it. I only subscribe to 2 other recipe sites besides yours. I’ve made so many of your recipes and all were winners. Thank you for all you send me. 🙂