Preheat the oven to 400 degrees F. Line a baking sheet with parchment paper. Place the bok choy halves on the baking sheet.
In a small bowl, whisk together the olive oil, soy sauce, sesame oil, honey, ginger, and red pepper flakes. Brush both sides of the bok choy halves with the marinade. Arrange the bok choy cut side down on the baking sheet.
Place the baking sheet on the lowest rack of the oven, and roast for 6 to 8 minutes, flipping halfway through the cooking time. Turn the broiler on, and transfer the baking sheet to the top rack. Cook under the broiler for 1 to 2 minutes, or until the bok choy leaves are crisped to your liking. Remove from the oven, and enjoy!
You can use large bok choy for this recipe. Slice the head lengthwise into quarters, and follow the instructions as written.
Wash the bok choy under cold running water to remove dirt that gets stuck between the leaves. However, be sure to pat them dry with a clean towel before brushing with the marinade.