• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
Mama Makes It Easy
  • About
  • Food
    • Breakfast
    • Main Dishes
    • Side Dishes
    • Desserts
    • Snacks/Appetizers
    • Kid Approved
  • Family
  • Home

Mushroom Rice Casserole

December 5, 2022 by mamamakesiteasy 6 Comments

Sharing is caring!

  • Email

Flavorful mushrooms and onions complement buttery rice. As easy as it is delicious, this mushroom rice casserole is well worth the calories!

mushroom rice casserole plated with broccoli and meatloaf

My mom makes this recipe for most of our family gatherings, often doubling it, and it’s ALWAYS a hit. Although it’s definitely not healthy, it’s totally worth the calories.

Great alongside beef, chicken, or pork, it’s a versatile side dish. And taking about 5 minutes to throw together, you’re usually done throwing it together before the oven even finishes preheating. That’s my kind of recipe!

Mushroom Rice Casserole Ingredients

  • Regular long grain white rice
  • Condensed French onion soup
  • Butter
  • Mushrooms
  • Water

How to Make Mushroom Rice Casserole Recipe

  1. Preheat oven to 325 degrees.
  2. Melt one stick (1/2 cup) of butter in a casserole dish.
stick of butter in glass bowl on wood table
  1. Add 1 cup of uncooked white rice to the melted butter and stir to coat.
adding white rice to melted butter
stirring uncooked white rice with melted butter
  1. Add 8 oz sliced fresh mushrooms (or one 2 1/2 ounce can of sliced mushrooms), 1 can condensed French onion soup, and 3/4 SOUP CAN of water. Stir to combine.
all ingredients combined in dish for mushroom rice casserole
  1. Cover and bake at 325 degrees for 90 minutes.
casserole dish covered with foil in oven
mushroom rice casserole done baking
  1. Stir just before serving.
mushroom rice casserole
  1. Enjoy!
mushroom rice casserole plated with broccoli and meatloaf

Frequently Asked Questions

  • Are canned or fresh mushrooms best for this recipe? Fresh mushrooms are best, although you can use canned mushrooms instead. Just be sure to drain them before adding them to the other ingredients.
  • Can this casserole be made ahead of time? Yes, but when preparing it in advance, go ahead and bake it. This casserole reheats extremely well. In fact, in my opinion, I think it’s even better the next day. Simply reheat it in the microwave until it’s heated through.
  • Can I use margarine instead of butter? Yes, but you will compromise flavor somewhat. My general line of thinking is “butter is best.”

Pin It For Later

mushroom rice casserole plated with broccoli and meatloaf

Mushroom Rice Casserole

Flavorful mushrooms and onions complement buttery rice. As easy as it is delicious, this mushroom rice casserole is well worth the calories!
5 from 1 vote
Print Recipe Pin Recipe
Prep Time 5 mins
Cook Time 1 hr 30 mins
Total Time 1 hr 35 mins
Course Side Dish
Servings 8

Ingredients
  

  • 1 cup regular white rice uncooked
  • 1/2 cup butter
  • 1 can condensed French onion soup 10.75 ounces
  • 3/4 soup can water
  • 8 oz fresh mushrooms sliced

Instructions
 

  • Preheat oven to 325 degrees.
  • Melt butter in casserole dish.
  • Add rice and stir to coat.
  • Stir in remaining ingredients.
  • Bake, covered, for 90 minutes.
  • Stir just before serving.
  • Enjoy!

Notes

Instead of using fresh mushrooms, a 2 1/2 oz can of sliced mushrooms or mushroom pieces can be used. Be sure to DRAIN them before adding to the casserole.
Keyword french onion, mushroom, rice, side dish

Filed Under: Food, Side Dishes Tagged With: cold weather, comfort food, easy, french onion, homemade, mushrooms, recipe, rice, side dish

Previous Post: « Copycat Chipotle Barbacoa Recipe {the BEST for slow cooker!}
Next Post: Simple Roasted Asparagus »

Reader Interactions

Comments

  1. Steph

    February 9, 2023 at 3:09 pm

    This looks ahhh-mazing! Since I’m living a low carb lifestyle, do you know if I can decrease the water and substitute cauliflower rice in this recipe? I will definitely be making the original recipe for my family. Thank you for sharing it!

    Reply
    • mamamakesiteasy

      February 9, 2023 at 5:19 pm

      Ooh, I’ve never tried it with cauliflower rice, but if you give it a go, please let me know how it turns out! I suspect it would require less baking time as well.

      Reply
  2. Rebekah

    February 9, 2023 at 3:29 pm

    This looks so delicious! My husband loves rice and mushrooms and admittedly I’ve never made it before! I can’t wait to see his face when he gets home for supper tonight! Great post!!

    Reply
  3. Caitlyn

    February 9, 2023 at 3:51 pm

    This looks delicious!

    Reply
  4. Tiffany

    February 9, 2023 at 7:33 pm

    I love all things mushroom and this looks delicious. Yum.

    Reply
  5. Julie

    February 10, 2023 at 2:08 am

    5 stars
    Looks absolutely delicious. I love rice dishes, they’re just so delish!

    Reply

Leave a Reply Cancel reply

Your email address will not be published. Required fields are marked *

Recipe Rating




Primary Sidebar

Let’s connect!

  • Email
  • Pinterest

Nice to see you!

Laura of Mama Makes It Easy

Hi there! I’m Laura, food enthusiast, household manager, wife, and mama to three of the sweetest babes on God’s green earth. Follow along for tasty recipes and menu inspiration, as well as tips for easier homemaking and home beautification. Read more about me here.

Recent Posts

  • Scrambled Eggs Recipe with Cornstarch and Butter: How to Make Creamy Scrambled Eggs
  • Step-By-Step Cinnamon Rolls from Scratch
  • Creamy Mushroom Chicken
  • The Ultimate Homemade Chicken Noodle Soup Recipe
  • Soft and Chewy Oatmeal Chocolate Chip Cookies

Recent Comments

  1. Eileen on Chewy Chocolate Chocolate Chip Cookies
  2. Anja on Copycat Chipotle Pinto Beans
  3. Joanna on Copycat Chipotle Pinto Beans
  4. Marcie on Copycat Chipotle Pinto Beans
  5. Julie on Easy One Pot Beef Stroganoff Recipe

Copyright © 2023 Mama Makes It Easy on the Foodie Pro Theme