
Lightly sautéed zucchini paired with sweet onions and drenched in Asian-style sauces makes an outstanding side. This Japanese-style veggie dish packs amazing flavor in just minutes of cooking time, so it's great for rushed evenings or when you want to wow dinner guests. The perfect mix of umami, sweetness, and mild spice turns ordinary zucchini into something even veggie-haters will gobble up.
I came up with this cooking trick during a summer when our garden gave us way too many zucchini and we got bored with our usual recipes. After trying different flavors, this Asian-inspired version quickly became what my family asks for most. My kids, who normally turn their noses up at green stuff, actually ask for seconds when I make zucchini this way.
Basic Components
- Zucchini: Forms the base with its subtle taste that soaks up seasonings—grab medium ones with smooth, firm skin for the best results and texture.
- Sweet onion: Adds wonderful aroma and natural sweetness that browns nicely while cooking—its gentle flavor works perfectly with the soft-tasting zucchini.
- Teriyaki sauce: Brings sweet and savory notes that turn plain veggies into something special—look for brands with visible spice bits for better taste.
Cooking Steps
- Getting Veggies Ready:
- Give your zucchini a good rinse then cut off the ends and throw them away. Slice across into two-inch chunks that are easier to handle. Take each chunk and cut it into six wedges by cutting in half first, then slicing each half into three equal pieces.
- Smart Frying:
- Warm your veggie oil in a big pan until it glistens but isn't smoking. Toss in your cut zucchini and onions, spreading them out so they brown instead of steam. Let them cook briefly without stirring too much so they get slightly caramelized.
- Adding Flavors:
- Drizzle your sauces right onto the partly cooked veggies, which makes steam that helps push flavor inside. Sprinkle your seasonings right away, making sure they spread evenly across everything.
- Watching Doneness:
- Keep an eye on things during the last few minutes, poking zucchini with a fork to check when it's just how you like it. Take it off the heat while it's still a bit firm since it'll keep cooking for a minute after you remove it.
- Serving It Up:
- Put your finished dish on a serving plate or straight onto dinner plates while hot. Scatter toasted sesame seeds on top to make it look pretty with the color contrast and add a light nutty flavor.

My next-door neighbor didn't believe zucchini could taste anything but boring until she tried this at an unplanned dinner at my place. After grabbing seconds, she wanted to know how I made it, saying the sauce combo totally changed how she felt about this summer veggie.
Keeping Leftovers
Put any extras in a sealed container in the fridge for up to three days. When you want to eat them, warm them up gently in a pan on medium heat to keep the nice texture, rather than using the microwave which can make your zucchini too soft.

Frequently Asked Questions
- → Can I prep this Zucchini Teriyaki in advance?
- Yes, but it’s tastiest fresh! Prep it 1-2 hours before, slightly undercook the veggies, and gently warm them before serving if needed.
- → What dishes go well with Zucchini Teriyaki?
- It’s great with teriyaki chicken, salmon, or even noodles like lo mein. Pair it with steamed rice or egg rolls for a full meal.
- → Can I add other veggies to this?
- For sure! Throw in bell peppers, mushrooms, broccoli, or snap peas. Just adjust cooking times—harder veggies need more time, softer ones less.
- → How do I sub teriyaki sauce?
- Mix soy sauce with a bit of honey or brown sugar for a quick fix. Oyster or hoisin sauce works too, just use a smaller amount since they’re stronger.
- → When’s the zucchini cooked just right?
- It’s done when tender but not mushy, with a slight bite. A fork should pierce it easily, and the green will look a bit translucent.