Yoshoku-Style Spaghetti with Miso Butter and Shiitake Mushrooms

By AislePrompt Editorial · Published 2026-05-19 · Updated 2026-05-19

How this recipe was made — this recipe was drafted by AislePrompt's AI-assisted pipeline from technique templates and USDA-sourced nutrition data, and published by AislePrompt Editorial — see how AislePrompt recipes are developed and reviewed.

A Japanese-Western fusion pasta dish featuring spaghetti tossed in a miso-infused butter sauce with sautéed shiitake mushrooms. This Yoshoku-inspired pasta recipe, ready in about 25 minutes, pairs spaghetti, unsalted butter, white miso paste for a weeknight-friendly dinner that comes together with one pan and minimal cleanup. Each serving lands at about 450 calories and feeds 4, so it slots cleanly into a weekly meal plan and pairs well with a quick salad or grain on the side. Tap "Plan a meal with the AI" below to drop this recipe into your week and send the ingredients straight to Instacart. Nutrition values are approximate, calculated from USDA FoodData Central (fdc.nal.usda.gov) — verify against ingredient labels for any health-driven dietary plan.

Prep: 10 min Cook: 15 min Serves 4 Yoshoku cuisine 450 cal/serving

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Ingredients

12 oz spaghetti
4 tablespoons unsalted butter
2 tablespoons white miso paste
8 oz, sliced shiitake mushrooms
3, minced garlic cloves
1 teaspoon soy sauce
2, thinly sliced scallions
1 tablespoon vegetable oil
to taste black pepper

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Instructions

Step 1: Bring a large pot of salted water to a rolling boil. Add 12 oz spaghetti and cook for 8-10 minutes until al dente. Drain and reserve 1/2 cup pasta water.
Step 2: While the pasta cooks, heat 1 tablespoon vegetable oil in a large skillet over medium heat. Add 3 minced garlic cloves and 8 oz sliced shiitake mushrooms, sautéing for 5-6 minutes until mushrooms are tender and fragrant.
Step 3: Reduce heat to low and stir in 4 tablespoons unsalted butter and 2 tablespoons white miso paste until melted and combined into a smooth sauce.
Step 4: Add the drained spaghetti to the skillet along with 1 teaspoon soy sauce and 1/2 cup reserved pasta water. Toss well to coat the pasta evenly, adding more pasta water if needed to loosen the sauce.
Step 5: Season with black pepper to taste and garnish with 2 thinly sliced scallions before serving immediately.