Step 1

Cook the udon noodles according to package instructions. Transfer the noodles to a colander and rinse with cold water.

Step 2

Heat the oil in a wok or large skillet over high heat. When the oil is shimmering, sauté the mushrooms for 3 minutes until they start to soften and brown.

Step 3

Add the asparagus, and continue sautéing for 3 minutes. The asparagus will turn bright green.

Step 4

Stir in the peas. Continue sautéing for 2-3 minutes until the peas are cooked through, the mushrooms are browned and the asparagus is crisp tender.

Step 5

Stir in the garlic, ginger, white parts of the scallions, red pepper flakes, salt and pepper. Cook until fragrant, about 30 seconds.

Step 6

Stir in the udon noodles and the soy sauce, giving the noodles a couple minutes to warm up.

Step 7

Fold in the green scallions and sesame seeds.