How to Make Easy Korean Seafood Vegetable Stir-Fry
Easy Korean Seafood Vegetable Stir-Fry – Savory Mixed Seafood & Vegetables
👨🍳 Tysoon's Korean Kitchen / Authentic Korean Recipes Made Easy
https://tysoonkorea.blogspot.com/2026/06/how-to-make-easy-korean-seafood.html
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What Is Korean Seafood Vegetable Stir-Fry?
Korean Seafood Vegetable Stir-Fry is a savory dish made with shrimp, squid, mussels, mushrooms, broccoli, green onion, and red bell pepper in a light, glossy sauce.
Unlike spicy Korean seafood dishes that rely heavily on gochugaru or gochujang, this recipe has a milder savory flavor built around oyster sauce, cooking wine, garlic, and green onion.
The seafood and vegetables are briefly blanched before stir-frying. This gives the ingredients a head start on cooking and allows the final stir-frying process to remain short.
A small amount of cornstarch slurry is added at the end to give the sauce a smooth consistency that lightly coats the seafood and vegetables.
Why You'll Love This Recipe?
This recipe combines seafood, mushrooms, and colorful vegetables in one dish.
Shrimp provides a firm, juicy texture, squid adds chewiness, and mussel meat contributes a deeper seafood flavor.
Shiitake and oyster mushrooms bring additional savory notes, while broccoli and red bell pepper provide contrasting textures and color.
Because the ingredients are briefly blanched first, the final stir-frying happens quickly.
It is a practical dish to serve with steamed rice as part of a Korean-style meal.
Ingredients
Seafood
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Raw shrimp
-
Squid
-
Mussel meat
Vegetables & Mushrooms
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Shiitake mushrooms
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Oyster mushrooms
-
Broccoli
-
Green onion
-
Red bell pepper
Seasoning
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Minced garlic
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Cooking wine
-
Salt
-
Oyster sauce
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Sugar
-
MSG
-
Cooking oil
-
Water — 100ml
Cornstarch Slurry
-
Cornstarch — 1 tsp
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Water — 3 tsp
How to Make Korean Seafood Vegetable Stir-Fry
Step 1. Prepare the Ingredients
Clean the seafood and vegetables thoroughly.
Cut the squid, mushrooms, broccoli, and red bell pepper into appropriate bite-sized pieces.
Slice the green onion diagonally.
Prepare everything before beginning to cook because the stir-frying portion of this recipe moves quickly.
Step 2. Blanch the Seafood and Vegetables
Bring plenty of water to a boil in a large pot.
Add:
- Shrimp
- Squid
- Mussel meat
- Shiitake mushrooms
- Oyster mushrooms
- Broccoli
- Green onion
- Red bell pepper
Blanch for approximately 30 seconds.
Drain immediately and remove as much excess moisture as possible.
The ingredients will continue cooking later in the wok, so avoid boiling them for too long at this stage.
Step 3. Stir-Fry the Aromatics
Heat cooking oil in a wok or large frying pan.
Add minced garlic and green onion.
Stir-fry over medium heat for approximately 30 seconds, just until fragrant.
Avoid browning or burning the garlic.
Step 4. Add the Seafood and Vegetables
Add all the drained seafood, mushrooms, and vegetables to the wok.
Add the cooking wine and stir-fry.
Season with:
- Salt
- Oyster sauce
- Sugar
- MSG
Stir-fry until the ingredients and seasonings are evenly combined.
Because the seafood was already briefly blanched, avoid unnecessarily prolonged cooking.
Step 5. Add Water and Thicken the Sauce
Add 100ml water and bring the mixture to a boil.
In a small bowl, combine:
- 1 tsp cornstarch
- 3 tsp water
Mix thoroughly.
Stir the slurry again immediately before using it because the starch settles quickly.
Add the slurry gradually while stirring the contents of the wok.
Stop adding when the sauce reaches the desired consistency.
The finished sauce should lightly coat the seafood and vegetables rather than becoming excessively thick.
Step 6. Serve
Transfer the finished seafood vegetable stir-fry to a serving plate.
Serve immediately while the seafood is tender and the vegetables still have a pleasant texture.
Why Blanch the Seafood and Vegetables First?
Seafood and vegetables cook at different rates.
Briefly blanching the ingredients before stir-frying gives them a similar starting point before they enter the wok.
In this recipe, they are blanched for only 30 seconds.
This is not intended to fully cook everything. The ingredients finish cooking during the stir-frying process.
Draining them thoroughly afterward is important because too much residual water can dilute the sauce.
How to Avoid Overcooking Seafood
Shrimp and squid can become tough when cooked for too long.
This recipe uses two short cooking stages:
First: a quick 30-second blanch.
Second: a brief stir-fry with the seasonings and sauce.
Once the shrimp are cooked and the squid is tender, there is no benefit to continuing to cook them for a long period.
Preparing all ingredients before heating the wok makes it easier to work quickly.
Ingredient Substitutions
Original Ingredient Substitute Options Notes Shrimp Fresh or frozen raw shrimp Thaw frozen shrimp completely and drain well. Squid Calamari or cleaned squid tubes Avoid overcooking to maintain a tender texture. Mussel meat Clams or additional shrimp The seafood flavor will be somewhat different. Shiitake mushrooms King oyster or button mushrooms Choose mushrooms that hold their shape during cooking. Oyster mushrooms King oyster or shiitake mushrooms Texture and flavor will vary slightly. Red bell pepper Yellow or orange bell pepper Use another sweet bell pepper rather than a very hot pepper. Cooking wine Mirin, sake, or dry sherry Flavor and sweetness vary, so adjust if necessary. Cornstarch Potato starch Add gradually because thickening strength may differ.
| Original Ingredient | Substitute Options | Notes |
|---|---|---|
| Shrimp | Fresh or frozen raw shrimp | Thaw frozen shrimp completely and drain well. |
| Squid | Calamari or cleaned squid tubes | Avoid overcooking to maintain a tender texture. |
| Mussel meat | Clams or additional shrimp | The seafood flavor will be somewhat different. |
| Shiitake mushrooms | King oyster or button mushrooms | Choose mushrooms that hold their shape during cooking. |
| Oyster mushrooms | King oyster or shiitake mushrooms | Texture and flavor will vary slightly. |
| Red bell pepper | Yellow or orange bell pepper | Use another sweet bell pepper rather than a very hot pepper. |
| Cooking wine | Mirin, sake, or dry sherry | Flavor and sweetness vary, so adjust if necessary. |
| Cornstarch | Potato starch | Add gradually because thickening strength may differ. |
Shopping Tips
Choosing Shrimp
Choose raw shrimp with a clean appearance and smell.
Fresh or frozen shrimp can both work well.
If using frozen shrimp, thaw completely and remove excess moisture before cooking.
Choosing Squid
Whole cleaned squid or prepared squid tubes can be used.
The flesh should have a clean smell and firm texture.
If frozen squid is used, thaw and drain it thoroughly.
Buying Mussel Meat
Fresh or frozen mussel meat can be used.
Pre-cleaned mussel meat is convenient because it eliminates the need to remove shells during preparation.
Choosing Mushrooms
Fresh shiitake and oyster mushrooms should feel relatively firm rather than wet or slimy.
Korean and Asian grocery stores often carry several varieties of mushrooms suitable for stir-frying.
Choosing Broccoli and Bell Pepper
Choose firm broccoli with tightly packed florets.
Bell peppers should feel firm with smooth skin.
Fresh vegetables are particularly important in this dish because they provide contrast to the soft seafood.
Buying Oyster Sauce
Oyster sauce is widely available in Asian grocery stores and many larger supermarkets.
Different brands vary in saltiness and sweetness, so final seasoning should be adjusted after tasting.
Storage
This seafood stir-fry is best eaten immediately after cooking.
Seafood can become firmer when repeatedly reheated, while the vegetables may lose their original texture.
If you have leftovers, refrigerate them promptly in a covered container and use them within approximately 1–2 days.
Reheat only until thoroughly hot rather than cooking for an extended period.
FAQ
Q1. What Is Korean Seafood Vegetable Stir-Fry?
It is a savory stir-fried dish combining seafood, mushrooms, and vegetables with a lightly thickened sauce.
This recipe uses shrimp, squid, mussel meat, shiitake mushrooms, oyster mushrooms, broccoli, green onion, and red bell pepper.
Q2. Is This Dish Spicy?
No.
This particular recipe does not use gochujang or Korean red pepper powder. Its primary flavors come from seafood, oyster sauce, garlic, green onion, and cooking wine.
Q3. Can I Use Frozen Seafood?
Yes.
Thaw it completely and drain it thoroughly before cooking.
Excess water from frozen seafood can dilute the sauce.
Q4. Why Do I Blanch Everything for Only 30 Seconds?
The blanching stage is intended to briefly pre-cook the ingredients rather than fully cook them.
They continue cooking in the wok afterward.
Q5. Can I Use Only Shrimp?
Yes, although the dish will no longer have the same variety of seafood flavors and textures as the original recipe.
Q6. Why Is Cooking Wine Added?
Cooking wine contributes flavor and is commonly used when cooking seafood.
If substituting another cooking wine, remember that sweetness and saltiness can vary.
Q7. What Does MSG Do in This Recipe?
MSG adds additional savory or umami flavor.
It is included in the original recipe but can be omitted according to personal preference.
Q8. What Does the Cornstarch Slurry Do?
The slurry thickens the cooking liquid into a light sauce.
It also helps the sauce cling to the seafood and vegetables rather than collecting as thin liquid at the bottom of the plate.
Q9. Why Should I Add the Slurry Gradually?
The sauce can thicken quickly.
Adding the slurry gradually gives you better control over the final consistency.
Q10. How Do I Prevent the Squid from Becoming Tough?
Avoid prolonged cooking.
Use the short blanching time specified in the recipe and keep the final stir-frying stage relatively brief.
Cooking Tips
Prepare everything before turning on the heat. Seafood stir-fries cook quickly.
Keep the blanching time short. The ingredients only need about 30 seconds before stir-frying.
Drain thoroughly. Excess water can weaken the sauce.
Don't overcook shrimp or squid. Long cooking can make their texture tough.
Stir the cornstarch slurry before adding it. Cornstarch settles quickly.
Add the slurry gradually. Stop when the sauce lightly coats the ingredients.
Serve immediately. Seafood and vegetables have their best texture when freshly cooked.
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