Preheat the oven to 350F. Line a baking sheet with parchment paper and coat with about 2 tablespoons of the oil (pump sprays work well too). Add the riced vegetables. I usually cook them for 35 to 40 minutes, moving the vegetables around every 15 to 20 minutes, to evaporate the excess water and get a finished product that is golden brown and slightly crunchy. Infusing fresh riced vegetables, you can sauté. them in a pan instead (sautéing frozen riced vegetables tends to make them very mushy and will change the outcome of your dish). Set aside when done.
While the riced vegetables are cooking, put the remaining 1 tablespoon of oil and the onion in a large pot and sauté. over medium heat for 2 to 3 minutes. Then add the cumin and continue to sauté. for another 2 to 3 minutes, stirring constantly so that the cumin does not stick or burn. Add the lentils, salt, bay leaves, and vegetable broth. Bring to aboil, cover, and let simmer for 10 minutes. Add the rice, stir, cover, and simmer for an additional 12 to 15 minutes or until the rice is cooked. Remove from the heat and let sit for an additional 5 minutes. Fold in the cooked riced vegetables.
To make the sauce, put all the sauce ingredients in a high-speed blender or blender cup and blend until well combined and creamy.
Top the vegetable mixture with the Tahini Sauce, parsley, and a squeeze of fresh lemon juice. Season with salt and pepper to taste. Leftovers can be frozen.