Easy Cheesy Hamburger Potato Casserole (Ready in About an Hour) - My Home Made Recipe

Ingredients

• 1 1/2 lb (680 g) ground beef (85% lean)
• 1 medium yellow onion, diced
• 3 cloves garlic, minced
• 1 tsp kosher salt
• 1/2 tsp black pepper
• 3 lb (1.4 kg) russet potatoes, peeled and sliced 1/4 inch thick
• 2 tbsp unsalted butter
• 2 tbsp all-purpose flour
• 1 1/2 cups (360 ml) whole milk
• 1 cup (240 ml) low-sodium chicken broth
• 1 tsp garlic powder
• 1/2 tsp onion powder
• 1/2 tsp smoked paprika
• 2 cups (200 g) shredded sharp cheddar cheese
• 1 cup (100 g) shredded mozzarella cheese
• Fresh parsley, chopped (optional)