Freeze the green cabbage overnight, or, you can also opt to boiling the whole head of cabbage in a large pot for 5 minutes;
Peel off 7 cabbage leaves, reserve the rest of the cabbage for another dish;
In a sauté pan, heat a generous drizzle of oil, cook the onions until they're slightly golden and caramelized, about 4-5 minutes, then add in the carrots and mushrooms, cook till all the veggies are soft;
Add in all the dry spices, mix and toast the spice for 2 minutes, you should smell the amazing aroma, then add in the drained lentils, coconut amino, continue to stir;
Once all the liquid is almost all absorbed, add in the arrowroot powder and quickly mix it evenly into the fillings, the mixture will become much thicker, take it off heat;
Lay down a cabbage leaf on your work surface, trim off any hard part towards the root, add about 2 tablespoon of fillings near the bottom of the leaf, roll up, fold in the sides, and finish rolling up to the end, repeat to finish all the leaves;
Preheat the oven to 350°F, add 3/4 cup of tomato sauce to an oven safe pan, place the cabbage rolls on top of the sauce, then spread the rest of the 1/4 cup tomato sauce on top, cover with the lid;
Bake for 45 minutes, top with fresh parsley, enjoy!