Recipe | Miso-Marinated Grilled Summer Squash

Miso-Marinated Grilled Summer Squash
In general, I don’t try to recreate restaurant recipes. While there have been a few that turned out well (like my Thai pizza), most of the time they don’t seem to measure up. It’s easier to just go to the restaurant in question and have the real thing.

Unfortunately, one of my favorite vegetable dishes was one we had in Japan, at a completely tourist-y ninja-themed restaurant. (Really, I don’t understand why there aren’t more restaurants with ninjas as waiters. Also, the ninjas did magic tricks.) It was so simple, only consisting of a miso-based sauce and steamed vegetables. But it was so good. My first few attempts at replicating the sauce resulted in salty, barely edible disasters. But this time I got it right! I realized that my version was missing the sweetness of the original and that I needed to add sugar.

I used different vegetables than we had in Japan (summer squash, since it’s that time of year) and grilled them instead of steaming them. This grilled summer squash recipe couldn’t be easier, so it’s a perfect way to use fresh zucchini from the garden.

Miso-Marinated Grilled Summer Squash

Yield: 4

A Japanese-inspired miso marinade turns summer squash into something special!


  • 1 tbsp. water
  • 3 tbsp. white miso
  • 1 1/2 tbsp. rice vinegar
  • 1 1/2 tbsp. sugar
  • 1 lb. zucchini or yellow (crookneck) squash, sliced 1/4 inch thick lengthwise
  • 2 green onions, thinly sliced


  1. Whisk together the first 4 ingredients in a small bowl until well-combined.
  2. In a large zip-top bag, combine squash, green onions, and sauce. Toss bag until squash slices are coated with sauce. Put bag in refrigerator, tossing hourly, for 4 hours.
  3. Lightly oil grill and heat to medium. Lay squash slices on grill and brush with leftover sauce. Cook until browned on bottom, about 4 minutes. Turn over, brush with remaining leftover sauce, and cook for another 4 minutes (or until browned).


About Kiersten

Kiersten is the founder and editor of Oh My Veggies.   Read more from Kiersten →

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  1. cruzgrl1 says

    this sounds amazing AND i have all the stuff to make it ,also have tomorrow off so look out grill, here we come:)

  2. BKWilliams says

    Grilled veggies are so good. This sounds yummy. Right now grilled anything would be better, because it is just too hot to cook inside. We have been under a burn ban for most of the summer and not allowed to grill:(


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