Heat a wok or large skillet over medium-high heat
Add oil with a high smoke point
Add aromatics like garlic, ginger, or onion
Add vegetables that take longest to cook first
Stir frequently to prevent burning
Add quicker-cooking vegetables next
Add a small splash of water if needed to help steam vegetables
Add sauce or seasonings near the end
Toss everything until evenly coated and tender-crisp
Remove from heat and serve immediately