Macarona Bechamel

Ingredients

• 1 tablespoon olive oil
• 1 pound lean ground beef
• 1 large onion (diced)
• 1 teaspoon 7 spice
• 1 teaspoon thyme
• ½ teaspoon salt
• ½ teaspoon pepper
• 2 garlic cloves (minced)
• 1 25-ounce can crushed tomatoes
• 4 tablespoons butter
• 4 tablespoons all-purpose flour
• ¼ teaspoon nutmeg
• 2 ½ cups milk
• 16 ounces spaghetti
• 2 cups shredded mozzarella cheese