Walnut Chicken Breasts

4 boneless chicken breast halves
lemon juice
6 tablespoons melted butter
3 cups bread crumbs, toasted
1/3 cup finely chopped onion
1/2 cup chopped celery
2 teaspoons parsley flakes
3/4 cup chopped walnuts
1/2 teaspoon seasoned salt
seasoned salt and pepper

Mix together bread crumbs, half of the melted butter, onion, celery, parsley, walnuts, 1/2 teaspoon seasoned salt, and enough water to moisten. Lay out 4 squares of aluminum foil, double thickness, and butter generously. Make a mound of stuffing on each buttered square of foil then place on baking sheet. Brush both sides of the chicken with lemon juice then with the remaining butter. Sprinkle with salt and pepper. Fold foil up over the chicken to make individual package. Bake at 350° for 40 minutes. Open packages to expose chicken and bake 15 minutes longer.