Taco Burgers Vegetarian Style - Kosher Everyday

Ingredients

• 1 large onion, finely diced
• 2 1/2 cups vegetable stock
• 2 cups bulgur
• 2 15 oz cans chick peas, drained and rinsed
• 1 1.25 oz package taco seasoning mix
• 8 oz shredded part skim mozzarella
• nonstick vegetable spray
• hamburger buns, lettuce, tomato (optional)