(**) – denotes optional ingredient
Fire up the grill to about 375F (or set oven to 420F).
In a bowl add the ingredients for the marinade and whisk together.
Add the vegetables and tofu to a sealable plastic bag and add about 3/4 of the marinade. Seal the bag (and try to get out as much air as possible). Gently flip the bag over and over to that all the ingredients are covered in the marinade. Set aside in the fridge for at least 1 hour.
Add the veggies and tofu to skewers.
Place on the grill and cook for about 12 to 15 minutes, flipping halfway through, to ensure even cooking and grill marks on multiple sides. Use the remaining marinade to baste the kabobs every 3 to 4 minutes while they cook.
Once you pull them off the grill, add about 2 teaspoons of sesame oil to the remaining marinade, and lightly brush the kabobs so they have a slight sesame flavor.
Garnish and enjoy!