Croquetas De Jamon

Name: Croquetas De Jamon
Ingredients: 6 tablespoons unsalted butter; 1 small onion, minced; 6 tablespoons all-purpose flour; 1 cup milk; 1 1/4 pounds baked ham, ground; 2 tablespoons finely chopped flat-leaf parsley; 1 tablespoon freshly squeezed lime juice (1/2 lime); 1/4 teaspoon ground nutmeg; Salt and freshly ground pepper; 2 large eggs, beaten; 1 cup bread crumbs; Peanut oil, for frying; Lime wedges, for garnish