Beef and Mushroom Casserole

Silver Post Medal for All Time! 254 Posts
November 30, 2020

A casserole with beef and mushrooms.Looking for a comforting casserole? This noodle casserole is a delicious mixture of mushrooms and beef. I got this recipe from my dear friend, Harold. It is a basic recipe and can be adjusted to your tastes.



  • 1 onion
  • 1 king oyster (Use shitake or button mushrooms for more mushroom flavor)
  • 8 cloves of garlic
  • 1/2 Tbsp chopped fresh rosemary
  • 1/2 - 1 lb beef (use more if you want it more meaty)
  • 3 Tbsp oil
  • salt
  • 3.5 Tbsp flour
  • 4 cups milk
  • 1/2 Tbsp Dijon mustard
  • pepper
  • Johnny's seasoning salt
  • 12 oz egg noodles
  • 1 cup chicken stock


This is a basic recipe you can add more herbs, thyme, parsley, oregano, sage, Italian seasons. You can use this recipe as a basis for many casseroles. Trade out the beef and use Italian sausage, get rid of the beef, and add more mushrooms for a vegetarian option.

  1. We used thinly cut beef that we cut into strips, you can use 1/2 cubes of beef or even ground beef for this. On med-high heat brown the beef in oil, fat, or butter, whatever fat you will make a roux from. Get it nice and brown
  2. Cooking the beef in a frying pan.

  3. Slice the mushrooms into thin strips, mince garlic, and dice onion.
  4. Deglaze the pan with Worcestershire sauce
  5. Add onions garlic and mushrooms and a pinch of salt.
  6. Cooking the mushrooms in the beef mixture.
  7. Cook it down to remove moisture from the mushrooms and onions. You want the sweat the onions and even get a bit of caramelization but be sure not to burn the garlic.
  8. When you see less steam and the onions start to caramelize, add 3 and 1/2 tablespoons of flour and cook until the flour releases a nutty smell, approx 5 minutes.
  9. Adding the cooked ingredients to a mixing bowl.
  10. Add 4 cups of milk. Bring the milk up to simmer until roux is just starting to stick to the spoon. Stir constantly.
  11. Mixing up ingredients in a bowl.

  12. Add 1 cup stock, Johnny's Seasoning salt, pepper to taste, and 1/2 tsp Dijon mustard.
  13. Turn off heat stir in dry egg noodles and cover and let sit. Preheat oven to 350F.
  14. Adding the pasta to the mixture.
  15. Once the oven has preheated, pour into a casserole, cover with parchment and then tin foil and cook for 20 minutes at 350F.
  16. A casserole with beef and mushrooms.

Note: Be sure to stir with a wooden spoon so the color doesn't get affected. Metal on metal can make the sauce have a grey color.

Comment Pin it! Was this helpful? 1


December 5, 20201 found this helpful

Looks delicious!! I think we will give this a try later this week. Yum.

Reply Was this helpful? 1
Food and Recipes Recipes CasserolesNovember 30, 2020
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