Preheat oven to 325°. Stir together Cheddar cheese, pepper Jack cheese, cream cheese, roasted red bell peppers, mayonnaise, cilantro, green onions, jalapeño peppers, Worcestershire sauce, dried crushed red pepper, and salt and freshly ground black pepper to taste. Lightly grease a 2-qt. baking dish with cooking spray; spread cheese mixture in prepared dish. Bake 20 to 25 minutes or until thoroughly heated and bubbly.