Breakfast Burrito Casserole

Name: Breakfast Burrito Casserole
Prep time: 15 min
Cook time: 35 min
Total time: 50 min
Cuisine: Mexican, American, Latin American
Ingredients: 1 lb chorizo sausage; 12 eggs, divided; 1 1/4 cups milk, divided; 1 (4 oz) can green chiles, drained; 1 teaspoon kosher salt; 1/2 teaspoon black pepper; 1 tablespoon butter; 3/4 cup green onions, sliced; 6 burrito size flour tortillas, quartered; 1 1/2 cups salsa; 1 cup cheddar cheese, grated; 1 cup Monterey Jack cheese, grated; Kosher salt and freshly ground black pepper, to taste