Scalloped Potatoes

Name: Scalloped Potatoes
Prep time: 15 min
Cook time: 2 h 30 min
Total time: 2 h 30 min
Yield: 8 portions
Ingredients: 1 oz unsalted butter; 1 lemon; water; 7 russet potatoes; 1 oz Parmesan cheese; 4 oz yellow onions; 2 garlic cloves; 1 tbsp all-purpose flour; 2 tsp lemon juice; 1 tsp Italian seasoning; 6 ½ oz heavy cream; 2 oz chicken broth; 2 tsp Dijon mustard; ½ tsp salt; ¼ tsp ground black pepper; 1 pinch ground nutmeg; non-stick cooking spray