You can combine the ingredients ahead, refrigerate the dish for a day, then pop it into the oven. Recipe is from Cooking Light magazine. Prep time does not include cooking time for wild rice and crawfish.
Preheat oven to 350 degrees F. Heat a large nonstick skillet over medium-high heat. Coat pan with cooking spray. Add 1 cup onion and bell pepper; saute 5 minutes or until tender. Add crawfish, cheeses and soup. Cook over medium heat until cheese melts; stirring occasionally. Stir in wild rice and remaining ingredients. Spoon into a 13 x 9 inch baking dish coated with cooking spray. Bake at 350 degrees for 30 minutes.