Combine onion, celery, pepper, mushrooms, zucchini, yogurt, mayonnaise, mustard and seasonings in a bowl and stir to combine. Stir in eggs, then stir in bread crumbs. Shape into 8 patties and fry over medium heat in ¼ inch of oil until golden brown on both sides and cooked through, about 2-3 minutes per side. Drain on paper towels. Serve with tartar sauce or roasted red pepper aioli.
Recipe by Cooking With MicheleĀ® at https://cookingwithmichele.com/2011/09/mock-crab-cakes-vegetable-fritters/