Put rice and vegetable broth in a small saucepan over medium heat. Let it come to a simmer and then reduce the heat to low and cover the pot. Cook the rice until the liquid has absorbed and the rice becomes soft. Brown rice takes about 45 minutes, white rice takes 15 minutes.
Stir in cooked riced cauliflower after the rice has cooked. Set this mixture aside while you prepare the rest of the dish.
Stir the black bean and corn salsa ingredients together in a large bowl. Let the flavors meld in the fridge while you work on the rest of the dish.
Put the Buddha bowl dressing ingredients in a mini chopper. Blend or pulse until completely smooth.
Prep the veggies for the bowls. Slice the avocado, cube the tofu, halve the grape tomatoes, and slice the lettuce and olives.
To assemble Mexican Buddha bowls, ¼ of the cooked rice mixture in the bottom of a bowl. Top with ¼ each of the black bean and corn salsa, tofu, lettuce, tomatoes, olives, and avocado. Drizzle ¼ of the dressing on top of each bowl. Garnish with cilantro, if desired. Enjoy!