Stuffed pasta shells

Ingredients (17)

• 1 cup ricotta (if ricotta is really watery
• 4 1/2 cups fresh spinach
• 1/4 cup + 2 tablespoons freshly grated parmesan cheese
• 2 tablespoons freshly grated parmesan cheese for topping
• 1 egg
• pinch of salt
• pinch of nutmeg
• 24 large pasta shells
• FOR THE SAUCE
• 2 1/2 cups tomato puree
• 1/2 in onion cut half
• 1 carrot quartered
• 2 tablespoons olive oil
• 1/2 teaspoon salt
• 2-3 leaves fresh basil
• 1 1/2 cups water
• 1/4 cup whole cream