My children love to eat out at Japanese hibachi houses and requested that I figure out how to make a copycat Benihana onion soup for them this week. It’s been MONTHS since we’ve been to this restaurant, but my family was THRILLED with what I put together.

Copycat Benihana Onion Soup – Easy To Make At Home
Now, before I get into this recipe, please note, this is a quick fix version of Japanese House onion soup. There are so many BETTER VERSIONS online – I am not even going to lie. This is for the mom who wants to whip up something FAST and EASY and that your kids will EAT. There wasn’t a DROP left at the dinner table after I served this.
Truth be told, I actually really loved the way it turned out as well. Is this how they make it? Absolutely not. But 5 months into lockdown and limited restaurant visits, this will do.

Copycat Benihana Onion Soup Ingredients
- 1/2 onion
- 2 tablespoons of oil – to saute the onion
- Seasoning packet of Ramen Noodles
- 3 large mushrooms – chopped
- 4 cups of water
- 4 shakes of soy sauces
- 1 tablespoon of butter
- 1 tablespoon of Italian seasoning
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How To Make Benihana Onion Soup
Towards the tail end of this “Cook With Me Vlog“, I show you how I make this soup if you want to watch me in action. Otherwise, here are the instructions.

Sautee 1/2 of an onion in 2 tablespoons of oil over medium heat. Then add in your chopped mushrooms. Cook for a few minutes.
Add in your water, ramen seasoning packet, and italian seasoning, and bring to a boil. Cover. Right before serving, add in your soy sauce and butter. Cook for a few more minutes and then serve. Enjoy!

Variation: I would consider adding in the ramen to give this a different spin. I know that the Benihana Onion Soup does not have any noodles traditionally, but after I served it to the kids I wondered about those noodles. Maybe even an egg! Just something to think about.
Chunky Vegetables Vs. The More Traditional Feel
Are you going to try this Benihana soup? I hope you do! I made the mushrooms and onions extra chunky because I wanted this appetizer to feel hearty – but again – that isn’t the VIBE you get while at the actual restaurant.
While dining in, it’s more of a broth soup with a touch of vegetables. You decide how you’d like to serve it. This is my take because I wanted to load my kids up on mushrooms!

Benihana Onion Soup
My children love to eat out at Japanese hibachi houses and requested that I figure out how to make a copycat Benihana onion soup for them this week. It's been MONTHS since we've been to this restaurant, but my family was THRILLED with what I put together.
Ingredients
- 1/2 onion
- 2 tablespoons of oil - to saute the onion
- Seasoning packet of Ramen Noodles
- 3 large mushrooms - chopped
- 4 cups of water
- 4 shakes of soy sauces
- 1 tablespoon of butter
- 1 tablespoon of Italian seasoning
Instructions
- Sautee 1/2 of an onion in 2 tablespoons of oil over medium heat. Then add in your chopped mushrooms. Cook for a few minutes.
- Add in your water, ramen seasoning packet, and Italian seasoning, and bring to a boil. Cover.
- Right before serving, add in your soy sauce and butter. Cook for a few more minutes and then serve. Enjoy!
Nutrition Information:
Yield: 5 Serving Size: 1Amount Per Serving: Calories: 597Total Fat: 21gSaturated Fat: 9gTrans Fat: 0gUnsaturated Fat: 10gCholesterol: 46mgSodium: 1009mgCarbohydrates: 91gFiber: 3gSugar: 78gProtein: 14g
Other Soup Recipes
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