Lasagna

Ingredients

• 2 lbs ground beef
• 2 tbsp olive oil
• 1 yellow onion
• 4 stalks celery
• 2 large carrots
• 6 cloves garlic
• 6 tbsp tomato paste
• 28 oz canned tomatoes
• 1 cup beef stock
• 1/2 cup dry red wine
• 1/2 tbsp salt
• 1/2 tbsp black pepper
• 2 tbsp dried oregano
• 5 sprigs fresh thyme
• 5 tbsp basil
• 5 tbsp flour
• 2 1/2 tbsp butter
• 1 1/2 cups whole milk
• 1 1/2 tsp paprika
• 1/5 tsp nutmeg
• 1 1/2 tsp black pepper
• 3 egg yolks
• 1 cup grated parmesan
• 1 cup shredded parmesan
• 1/5 box mozzarella cheese
• 1 box lasagna sheets