Lauren’s Casserole–old fashioned egg noodles with ground beef, tomatoes, diced green chiles, mushrooms and cheese made fast in the Instant Pot.

Lauren’s Casserole
We took this one down! It was yummy yummy! The old fashioned noodles make a perfect meal for any day of the week. A sprinkle of fresh basil or parsley will add a pop of color and freshness. Trying pairing this with a crisp green salad or garlic bread for a complete meal. Leftovers can be easily reheated, making it a great option for meal prep (my son came home for lunch just now and snagged the leftovers!).
Recipe adapted from Lauren’s Beef Lombardi Casserole on Cookpad.
Ingredients/Substitution Ideas
- Lean ground beef–I used 93/7
- Dry minced onion–or 1 cup fresh diced onion
- Garlic powder
- Kosher salt
- Pepper
- Onion powder
- Beef broth–or water and Better than Bouillon beef base
- Worcestershire sauce
- Old fashioned egg noodles–I used Mrs Miller’s brand
- Mushrooms
- Diced green chiles
- Diced tomatoes
- Tomato paste
- Sour cream
- Sharp cheddar
- Whole milk mozzarella cheese–Tillamook brand is so good
Steps
Turn Instant Pot to saute setting. When display says HOT add in the beef and break it up. Add in the onion. Brown for 5 minutes. Drain off excess grease. Stir in the garlic powder, salt, pepper and onion powder.

Pour in the beef broth and Worcestershire sauce and scrape bottom of pot so that nothing is sticking. Turn off Instant Pot.

Pour in the noodles.

Dump the mushrooms, green chiles, tomatoes and tomato paste on top.

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 let pot sit for 10 minutes. Move valve to venting and remove the lid.

Stir in the sour cream, cheddar and mozzarella.

Serve and enjoy!

Notes/Tips
- Serve with roasted asparagus and green beans.
- Variation: try stirring in a couple cups of spinach after pressure cooking time is up.
- I used my 6 quart Instant Pot*. You can also make this in an 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.
- I found the special homemade egg noodles next to the regular pastas. They look more homemade and they taste really great in this recipe! If you can’t find these egg noodles you can use regular egg noodles but only pressure cook for 1 minute instead of 4 minutes.
- Other recipes you can make with Mrs. Miller’s Noodles are Traci’s Casserole and Amish Sunday Casserole.

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.


Lauren’s Casserole
- Prep Time: 20 minutes
- Cook Time: 4 minutes (plus 10 minute NPR)
- Total Time: 24 minutes
- Yield: 4–6 servings 1x
Description
Old fashioned egg noodles with ground beef, tomatoes, diced green chiles, mushrooms and cheese made fast in the Instant Pot.
Ingredients
- 1 pound lean ground beef
- 2 Tbsp dry minced onion
- 1 tsp garlic powder
- 3/4 tsp kosher salt
- 1/2 tsp pepper
- 1/2 tsp onion powder
- 2 cups beef broth
- 1/2 tsp Worcestershire sauce
- 8 ounces old fashioned egg noodles
- 4 ounces sliced mushrooms
- 4 ounces diced green chiles
- 1 (14.5 oz) can diced tomatoes
- 3 Tbsp tomato paste
- 1/3 cup sour cream
- 1/2 cup shredded sharp cheddar
- 1/2 cup shredded whole milk mozzarella cheese
Instructions
- Turn Instant Pot to saute setting. When display says HOT add in the beef and break it up. Add in the onion. Brown for 5 minutes. Drain off excess grease. Stir in the garlic powder, salt, pepper and onion powder.
- Pour in the beef broth and Worcestershire sauce and scrape bottom of pot so that nothing is sticking. Turn off Instant Pot.
- Pour in the noodles. Dump the mushrooms, green chiles, tomatoes and tomato paste on top.
- 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 let pot sit for 10 minutes. Move valve to venting and remove the lid.
- Stir in the sour cream, cheddar and mozzarella.
- Serve and enjoy!
- Category: Beef
- Method: Instant Pot

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It was good with cresm cheese in place of sour cream. Leftovers reheated well.
good idea!