Zucchini and Onion Stir-Fried Udon for One: Prep Without Forcing the Noodles Apart

Before cooking for one

Cooking just for yourself? Start with these amounts from the recipe's one-serving column. Check the full ingredient list below for the remaining ingredients and seasonings.

• Udon: 1 package (190 g pre-cooked noodles)
• Zucchini: 0.125 of a medium zucchini
• Onion: 0.25 of a medium onion

Follow the recipe's preparation and cooking steps after measuring; package size is not the amount to use.

Halve the zucchini lengthwise and slice it to 3 mm thick. Thinly slice the onion as well. Slicing both ingredients to a similar thickness makes it easier to check how they are cooking in the pan. The recipe uses one 190 g package of pre-cooked udon noodles. Dried or frozen noodles need prep times suited to the product.

Ingredients for 1 serving

• Udon: 1 package (190 g pre-cooked noodles)
• Zucchini: 1/8 of a medium zucchini
• Onion: 1/4 of a medium onion
• Soy sauce: 1/2 household eating spoon
• Cooking oil: 1/2 household eating spoon
• Sesame oil: 1/4 household eating spoon

The amounts are based on the recipe table for 1 serving in the app. Household eating spoons and pinches are everyday measures and have not been converted to exact grams or milliliters. Check the package size and cup capacity shown in parentheses, too.

Instructions

• Step 1. Wash the zucchini and peeled onion. Halve the zucchini lengthwise and slice it 3 mm thick; thinly slice the onion.
• Step 2. Bring 500 mL of water—the amount in 2 bottled-water bottles—to a boil in a pot. Add the pre-cooked udon noodles, loosen and cook them according to the package directions, then drain in a sieve.
• Step 3. Add the cooking oil and prepared vegetables to a pan and stir-fry over medium-low heat for 4 minutes. Check that the onion is translucent and the zucchini bends easily.
• Step 4. Add the cooked udon and soy sauce, and stir-fry over medium-low heat for 2 minutes, turning the noodles as you go. Continue when the soy sauce coats all the noodles and steam rises.
• Step 5. Turn off the heat once the noodles are hot throughout. Mix in the sesame oil and arrange the noodles in a shallow layer on a plate.

Check the vegetables before adding the noodles

Check that the onion is translucent and the zucchini bends easily. Cook the vegetables first so you do not have to stir-fry firm vegetables and noodles together for too long. Drain the cooked noodles before adding them, then lift and turn them with chopsticks or tongs to coat them with soy sauce. Heat everything evenly so no clumps of cold noodles remain.

Add the sesame oil at the end

When steam rises from all the noodles, turn off the heat and mix in the sesame oil. The cooking oil and sesame oil in the ingredient list have different roles and are added at different times. Do not add both oils together at the start. Rather than piling the finished udon high, spread it shallowly on the plate so you can pick up noodles with the vegetables.

Continue cooking with Kkinion

You can check the ingredients and step-by-step instructions by opening the zucchini and onion stir-fried udon recipe. If you change the number of servings, check the quantities displayed in the app again.

This guide was written by the Kkinion editorial team based on a recipe published on Kkinion, explaining the cooking flow and what to check along the way. It is not a firsthand cooking or tasting review, nor does it verify nutritional effects. The cover image is an AI-generated cooking example used in the app and may differ from the actual result.

Make it yourself with a Kkinion recipe

Below are the full ingredients and cooking instructions for “Zucchini and Onion Stir-Fried Udon.” First choose the quantities for the number of servings, then follow each step’s instructions for preparation and cooking.

Recipe Ingredients

Zucchini and Onion Stir-Fried Udon · Estimated time: 15 minutes · Equipment: frying pan, pot, and sieve

Choose one of the two quantities below to suit the number of people you are cooking for.

• Udon: 1 serving 1 package (190 g pre-cooked noodles) / 2 servings 2 packages (190 g pre-cooked noodles)
• Zucchini: 1 serving 0.125 of a medium zucchini / 2 servings 0.25 of a medium zucchini
• Onion: 1 serving 0.25 of a medium onion / 2 servings 0.5 of a medium onion
• Soy sauce: 1 serving 0.5 household eating spoon / 2 servings 1 household eating spoon
• Cooking oil: 1 serving 0.5 household eating spoon / 2 servings 1 household eating spoon
• Sesame oil: 1 serving 0.25 household eating spoon / 2 servings 0.5 household eating spoon

Complete Cooking Instructions

Step 1. Wash the zucchini and peeled onion. Halve the zucchini lengthwise and slice it 3 mm thick; thinly slice the onion.

What to look for: One-eighth of a zucchini is the amount you get by dividing it in half, then dividing that piece in half three times. Prepare only the quantity listed below.

Step 2. Bring 500 mL of water—the amount in 2 bottled-water bottles—to a boil in a pot. Add the pre-cooked udon noodles, loosen and cook them according to the package directions, then drain in a sieve.

What to look for: This is based on one 190 g package of pre-cooked noodles for 1 serving. Dried noodles have a different cooking time. Adjust the default 2-minute timer to suit the product, and discard the cooking water.

Step 3. Add the cooking oil and prepared vegetables to a pan and stir-fry over medium-low heat for 4 minutes. Check that the onion is translucent and the zucchini bends easily.

What to look for: Measure with the same household eating spoon. Do not fill liquids to overflowing or heap powders. The amount varies depending on the spoon size.

Step 4. Add the cooked udon and soy sauce, and stir-fry over medium-low heat for 2 minutes, turning the noodles as you go. Continue when the soy sauce coats all the noodles and steam rises.

What to look for: Measure with the same household eating spoon. Do not fill liquids to overflowing or heap powders. The amount varies depending on the spoon size.

Step 5. Turn off the heat once the noodles are hot throughout. Mix in the sesame oil and arrange the noodles in a shallow layer on a plate.

What to look for: For 3–4 servings, stir-fry in two batches so the pan does not get crowded. Pulling the noodles apart by force will break them.

Check the ingredients and cooking steps for zucchini and onion stir-fried udon

The images in this article are newly generated AI images based on the Kkinion recipe linked to this post. The featured image is also an AI-generated example. These are not photos of actual cooking or tasting, and the quantities or finished appearance may differ.

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