Spinach Lasagna Recipe

• 2 Tbsp Olive Oil
• 6 Large Onions(2 white, 2 red, 2 yellow) halved and thinly sliced
• 6 cloves garlic, chopped
• 1 1/2 cups lowfat chicken or vegetable stock, divided
• 6 scallions, thinly sliced
• 1 tbsp dried oregano
• 2 tsp salt
• 1 tsp freshly ground black pepper
• 9 whole-wheat lasagna noodles
• 2 packages (9 oz each) frozen spinach
• 1 tbsp all-purpose flour
• 1 egg
• 2 cups part-skim ricotta
• Grated zest of 1/2 lemon
• Olive oil cooking spray
• 1 cup grated Parmesan, divided

Directions