Creamy pesto cannelloni au gratin: the easy and tasty recipe

Ingredients

• 10 dry cannelloni (or fresh pasta sheets to roll)
• 1 cup of ricotta cheese
• 5 tablespoons grated Parmesan cheese (+3 gr for gratin)
• 5 tablespoons of pesto
• salt to taste
• pepper to taste
• 1 oz fresh basil
• 1/3 cup of parmesan cheese
• 1oz pine nuts
• 1 clove of garlic
• 5 tablespoons olive oil
• 2 cups milk
• 1.5 oz cold butter
• 1/3 cup flour
• nutmeg to taste