Mix the contents of your marinade including the soy sauce, vinegar, red pepper flakes, maple syrup, sesame oil, lime and salt.
Add the ingredients to a freezer bag with the watermelon, and refrigerate for 6 to 8 hours.
Preheat the oven to 400F. Transfer the watermelon to a baking dish, and bake for 1 hour to 1 hour and 20 minutes, checking intermittently until it’s cooked to your liking.
Enjoy with sesame seeds and rice, or in a nourish bowl.