01 -
Cook noodles according to package directions until al dente.
02 -
Mix cream cheese, imitation crab, green onion, Worcestershire sauce, minced garlic, and salt together until thoroughly incorporated.
03 -
Melt butter in a medium saucepan over low heat. Add flour and cook for 1-2 minutes, stirring constantly. Gradually add milk while continuing to stir. Keep stirring until sauce thickens. Season with salt and pepper.
04 -
Place half the cooked noodles in a 9x13 baking pan. Spread half the crab mixture over noodles, then pour half the béchamel sauce on top.
05 -
Add the remaining noodles, then spread the rest of the crab mixture, and pour the remaining sauce over that layer.
06 -
Cover with foil and bake in a preheated 350°F (175°C) oven for 30 minutes.
07 -
While casserole is baking, combine Parmesan cheese, panko breadcrumbs, and softened butter in a small bowl until well mixed.
08 -
Remove foil and sprinkle the Parmesan-panko topping evenly over the casserole. Set the oven to broil and place casserole under the broiler for 2-3 minutes or until golden brown and crispy.