Combine the quinoa, potatoes, salt, and lemon pepper in a large bowl. Stir in the coriander leaves, onion, cheese, and garlic. Stir in the bread crumbs and chopped carrot/zucchini. Let the mixture sit for a few minutes so the crumbs absorb some of the moisture.

Heat the oil in a large skillet over medium-low heat, add 5-6 patties, cover, and cook for 7 to 10 minutes until the bottoms are deeply browned. Carefully flip the patties with a spatula and cook the second sides for 5 minutes, or until golden. Remove from the skillet and cool on a large plate while you cook the remaining patties. Add more oil to the skillet if needed between each batch.

Serve plain or in a pita, on a salad, or in a burger.