2 pounds ground beef 1 1/2 cups saltine crackers, crushed (1 sleeve of crackers, roughly) 1 cup whole milk 1/2 teaspoon Italian seasoning 1/2 teaspoon garlic powder 1/2 teaspoon onion powder 1/4 teaspoon cayenne all-purpose flour, for dredging kosher salt and freshly ground pepper, to taste Gravy: 2 (10.75 oz.) cans condensed cream of mushroom soup 1 1/2 cups whole milk 1 1/2 tablespoons fresh parsley, finely chopped