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Tuna Noodle Casserole

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1 lb. white mushrooms, sliced
12 oz. frozen petite green peas
8 oz. dry egg noodles
2 cups low-sodium chicken broth
1 cup shredded cheddar cheese
1 cup 2% milk
1/2 cup Kikkoman® Panko Bread Crumbs
1/4 cup flour
3 Tbsp. butter, divided
2 Tbsp. olive oil
1 Tbsp. + 2 tsp. Kikkoman® Less Sodium Soy Sauce (divided)
2 cans tuna packed in water, drained
1 medium yellow onion, diced
Salt and black pepper
Juice from half a lemon


Preheat the oven to 375 degrees F and spray a 13×9 casserole dish with cooking spray. Cook the egg noodles according to package directions and set aside.

In a large skillet over medium heat, melt 1 Tbsp. butter. Sauté the onions until golden and translucent, season with salt and pepper. Add the mushrooms and cook until the mushrooms have shrunk and cooked through. Add 1 Tbsp. of the soy sauce and stir well. Remove from heat and set aside.

Place the skillet back on the range over medium-high heat, add the remaining 2 Tbsp. butter and 2 Tbsp. olive oil. Whisk in the flour and cook for two minutes, then slowly add the chicken broth, whisking constantly. Bring to a boil, then whisk in the milk. Reduce the heat to a simmer and cook for another 5 minutes.

Add the mushroom and onion mixture to the white sauce and then stir in the lemon juice. Add the rest of the soy sauce (2 tsp.), drained tuna, peas, and the cooked egg noodles.

Transfer the mixture to the casserole dish. Top with the cheddar cheese and breadcrumbs. Bake for 15-20 minutes, until the breadcrumbs are toasted and cheese is melted.


Even people who love soy sauce and use it all the time are often surprised to learn what it is and how it’s made. We make ours from just four simple ingredients—water, soybeans, wheat, and salt. Those ingredients are transformed through a traditional brewing process—much like making wine or beer—that has remained unchanged for centuries.


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