Japanese Noodles with Bok Choy

Had bok choy lying around and Matt hates Chinese, so I made this. Had no tofu, didn't feel like chopping onion, so I just stir-fried garlic, then bok stems, then bok leaves. I didn't bother to measure the sauce ingredients, though I did at least stir them together before pouring them on with the noodles. As a result I threw in too much corn starch and the result is a teensy bit gummy, but otherwise hits the spot.