Hash Brown Waffles with Chorizo Gravy

Name: Hash Brown Waffles with Chorizo Gravy
Ingredients: 20 oz shredded hash browns; 3 eggs; ¼ cup Milk; 1 cup shredded cheddar cheese; ¼ cup chopped green onions ((dark green parts)); Salt & pepper; Shredded cheese, chopped green onions, and sour cream, for topping ((optional)); 1 Tbsp olive oil; 1 lb fresh chorizo, casings removed if it has casings ( (we had venison chorizo so that’s what I used)); 3 Tbsp all-purpose flour; 2½ cups whole milk; salt and pepper, (to taste); Hot sauce, optional ((whatever your favorite is) )