Stuffed Pasta Shells - Alberta Milk

Ingredients

• 250 g (6 oz) jumbo pasta shells, about 16 (Tip: cook a few extra in case some break)
• 2 cups (500 g) ricotta cheese
• 1 cup (250 ml) shredded mozzarella cheese, divided in half
• 1/2 cup (125 ml) shredded Parmesan cheese, divided in half
• 1 cup (250 ml) chopped fresh spinach, about 1 large handful
• 1 egg
• 1 tbsp (15 ml) Italian seasoning
• 1/8 tsp (0.5 ml) pepper
• 1 jar (650 ml) low-sodium marinara or pasta sauce
• fresh basil leaves (optional)