Piñata Pitas

Ingredients

• Cooking spray
• 1 cup chopped onion
• 2 tablespoons balsamic vinegar
• 1 (15.5-ounce) can golden hominy, drained
• 1 (15-ounce) can black beans, rinsed and drained
• 1 (12.3-ounce) package firm tofu, drained and cut into 1-inch cubes
• 1 tablespoon dried parsley
• 2 teaspoons ground coriander
• 1/2 teaspoon dried thyme
• 1/4 teaspoon black pepper
• 2 cups (8 ounces) crumbled feta cheese, divided
• 4 (7-inch) pitas, cut in half
• 1 1/2 cups chopped tomato
• 1/2 cup sliced green onions