Buffalo Chicken Enchiladas

Preheat oven to 400°F. Lightly coat a 13- x 9-inch baking dish with cooking spray, and set aside. Stir together cream cheese and 1/3 cup of the buffalo sauce in a small bowl until well blended.

Heat oil in a large nonstick skillet over medium-high. Add bell pepper, celery, onion, and white and light green parts of scallions; sprinkle with salt, and cook, stirring often, until vegetables are slightly softened, 3 to 4 minutes. Remove from heat.

Place softened tortillas on a work surface. Spread 1 tablespoon cream cheese mixture in center of each tortilla; top each with 2 tablespoons Monterey Jack, 1/4 cup shredded chicken, and 2 tablespoons vegetable mixture. Roll up, and place enchiladas, seam side down, in prepared baking dish. Line dish with 2 rows of 6 enchiladas; place 4 more enchiladas, overlapping if necessary, in remaining space of prepared dish.

Stir together butter and remaining 1/3 cup buffalo sauce; drizzle over enchiladas. Sprinkle with remaining 1/2 cup Monterey Jack, and drizzle with blue cheese dressing. Sprinkle with crumbled blue cheese. Cover with aluminum foil, and bake in preheated oven until cheese is melted and bubbly, 15 to 17 minutes. Uncover and sprinkle with dark green parts of sliced scallions.