Cook the soba noodles according to the package directions. Drain, rinse in cold water, and set aside
While the noodles cook, stir together the sesame sauce, whisking all ingredients in a medium bowl.
Heat a skillet over medium heat. Melt the coconut oil in the pan and then add the peas, purple cabbage, bell pepper, and cook until the veggies are bright and crisp-tender, about 3-5 minutes.
To the veggies add the sesame sauce and noodles. Cook for 2-3 minutes, tossing constantly, until the noodles and veggies are coated and warmed through.
Remove from the heat and stir in the scallions. Divide between bowls and tip with microgreens.