Combine bread crumbs with 1/4 cup blue cheese in small bowl; set aside.
Combine Hellmann's® or Best Foods® Real Mayonnaise, sour cream, remaining 1/2 cup blue cheese, Birds Eye ®Artichoke Hearts, Birds Eye® Spinach and cayenne pepper sauce in medium bowl. Spread artichoke mixture into 1-1/2-quart casserole, then top with bread crumb mixture.
Bake uncovered 35 minutes or until heated through. Serve with your favorite dippers.