Montana Casserole–a hearty biscuit, egg and sausage breakfast casserole that comes from the Amish in Montana.

Montana Casserole
Today’s recipe is adapted from the blog Amish 365. The author says, “The Amish who live in Montana really are known for their hearty pull-out-all-the-stops casseroles like this Sausage Biscuit Casserole. This hearty casserole is a favorite among the Amish in St. Ignatius and Rexford, two of the oldest Amish settlements in Big Sky Country.”
I adapted the recipe a bit to my taste and created a way to make it in the Instant Pot with air fryer lid (or you can always make it in the oven). It’s a hearty breakfast casserole that my family likes to eat for dinner. Breakfast is usually not the time of day when I have a ton of time to cook so typically these types of casseroles are served at brunches or dinner. Greg loved picking off all the crispy browned top! Of course lol.
Ingredients/Substitution Ideas
- Ground breakfast sausage–I used Jimmy Dean
- Minced dried onion–or a quarter cup fresh diced onion
- Green bell pepper–or red pepper
- Frozen hashbrowns–or refrigerated hashbrowns
- Shredded cheddar cheese–or colby jack cheese
- Milk
- Bisquick–or equivalent baking mix
- Eggs
- Kosher salt
- Black pepper
- Garlic powder
- Bacon crumbles–or you can fry up bacon and crumble
Steps with Duo Crisp
Turn Instant Pot to saute setting. When display says HOT add in the sausage and break it up. Add in the onion and green pepper. Brown the sausage until cooked through.

Stir in the hashbrowns and toss well. Heat the hashbrowns for a couple of minutes. Turn off Instant Pot.

In a medium bowl whisk together milk, bisquick, eggs, salt, pepper, garlic powder, bacon and half of the cheese. Pour the mixture over the hashbrowns.

Cover Instant Pot with air fryer lid. Use the bake button at 300 degrees for 35 minutes. Then sprinkle on remaining cheese and bake for 5 more minutes at 375 degrees. Serve and enjoy!

Notes/Tips
- Serve with fresh fruit like strawberries, blueberries and kiwis.
- I used my 6 quart Duo Crisp Instant Pot*. If you don’t have an air fryer lid you can also make this in the oven.
- You can easily halve this recipe. Halve the ingredients (same cooking time). If baking in the oven use a square 9×9 inch baking dish instead of 9×13 inch dish.
- This recipe is a good “make the night before” recipe. Cover with foil and refrigerate overnight and then bake the next morning. You may need to cook a little longer since it will be cold coming out of the fridge.
- Store leftovers in an airtight container* in the refrigerator for up to 5 days.
- Don’t have any Bisquick? You can make your own from scratch.

More Breakfast Recipes…
Instant Pot Christmas Morning Breakfast Casserole
Eggs, bacon, sausage and tots are the stars of this indulgent and delicious breakfast casserole that’s perfect for Christmas morning or Sunday brunch.
Instant Pot Cheesy Bacon Breakfast Potatoes
Tender cubed potatoes tossed in seasonings with bacon, green pepper, onions and cheese. Perfect for breakfast (or dinner)!
Farmer’s Breakfast
A hearty breakfast of eggs, bacon and potatoes that will fill you up and keep you full until lunch or even dinner! Use your Instant Pot to quickly steam the potatoes.
Loaded Overnight Breakfast Casserole
Loaded Overnight Breakfast Casserole is a winning breakfast! It has eggs, hashbrowns, bacon crumbles and cheddar cheese. Prep it the night before and then bake it in the morning in your Crockpot, Instant Pot or in the oven!
Instant Pot Sausage Gravy
Country style gravy made with ground sausage and diced bacon is infused with flavors as it is quickly pressure cooked. When served over freshly baked biscuits (homemade or from a can) it tastes like a good old fashioned southern breakfast (although we eat this often for dinner).
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.


Montana Casserole
- Prep Time: 25 minutes
- Total Time: 25 minutes
- Yield: 6–8 servings 1x
Description
A hearty biscuit, egg and sausage breakfast casserole that comes from the Amish in Montana.
Ingredients
- 1 pound ground breakfast sausage (I used Jimmy Dean)
- 1 Tbsp minced dried onion
- 1 green bell pepper, cored and diced
- 12 ounces frozen hashbrowns
- 1 cup shredded cheddar cheese, divided
- 1/2 cup milk
- 1 cup Bisquick
- 4 large eggs
- 3/4 tsp kosher salt
- 1/2 tsp black pepper
- 1/2 tsp garlic powder
- 1/3 cup bacon crumbles
Instructions
Instant Pot Instructions (you must have an air fryer lid):
- Turn Instant Pot to saute setting. When display says HOT add in the sausage and break it up. Add in the onion and green pepper. Brown the sausage until cooked through.
- Stir in the hashbrowns and toss well. Heat the hashbrowns for a couple of minutes. Turn off Instant Pot.
- In a medium bowl whisk together milk, bisquick, eggs, salt, pepper, garlic powder, bacon and half of the cheese. Pour the mixture over the hashbrowns.
- Cover Instant Pot with air fryer lid. Use the bake button at 300 degrees for 35 minutes. Then sprinkle on remaining cheese and bake for 5 more minutes at 375 degrees.
Stove/Oven Instructions
- Spray a 9×13 inch baking dish with non-stick cooking spray.
- Heat a pan over medium high heat. Add in the sausage and break it up. Add in the onion and green pepper. Brown the sausage until cooked through. Add the mixture into the baking dish. Stir in the hashbrowns.
- In a medium bowl whisk together milk, bisquick, eggs, salt, pepper, garlic powder, bacon and half of the cheese. Pour the mixture over the hashbrowns.
- At this point you can cover with foil and refrigerate overnight or if you prefer you can bake right away. Bake for 45 minutes at 350 degrees. Sprinkle with remaining cheese and bake for 5 more minutes.
- Category: Breakfast
- Method: Air fryer lid or oven
*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.
I can’t wait to try this.. I was looking for recipes to use some cartons of liquid egg that I got from a food bank… this seems great to do on a large scale for a brunch potluck
Good plan!
The recipes is really good and this was my first time making it but next time I would tweak it to double the sausage and the biscuit mix. Other than that it had really good flavor
★★★
Thanks for the review Megan!
Hi Karen. I haven’t made this recipe yet but I’d like to. Reading this and looking at how good it looks, the thought came to me of adding slices of ripe Mangos to it to spruce up the flavor. It just sounds good to me but what do you think?
★★★★★
Mangos? That would be interesting! If you like sweet and salty then I say go for it!