Veal and Spinach Lasagna Rolls au Gratin | Canadian Goodness

Ingredients

• 1 tbsp (15 mL) olive oil
• 1 onion finely chopped
• 2 stalks celery finely chopped
• 1 lb (454 g) ground veal or beef
• 1/2 tsp (2.5 mL) dried oregano
• 1/4 tsp (1 mL) dried thyme
• 28 oz (796 mL) can crushed low sodium tomatoes
• 1 cup (250 mL) tomato sauce
• 1 lb (454 g) Ricotta
• 1 egg beaten
• 10 oz (284 g) spinach stems removed
• cooked
• squeezed dry and chopped
• 1 cup (250 mL) grated Mozzarella
• 1/4 cup (60 mL) grated Parmesan
• 12 cooked lasagna pasta
• Salt and pepper to taste