2 (12 x 18 inch) sheets heavy duty aluminum foil
2 sheets wax paper
2 single boneless chicken breasts
1 sm. onion, sliced
1 tsp. Dijon mustard
1 tsp. mayonnaise
1 red pepper, cut in strips
1 sm. zucchini, sliced
1/2 lb. mushrooms, sliced
1/8 tsp. pepper
1/8 tsp. basil
1/4 tsp. garlic salt
1 tbsp. butter
2 tsp. Parmesan cheese

Preheat oven to 450 degrees. Place chicken between 2 sheets of wax paper. Pound to 1/4 inch thickness. Set aside. Spread out foil; place half the onion in lower half of each sheet. Top with chicken. Combine mustard and mayonnaise; spread on top chicken. Top with vegetables, spices and butter. Sprinkle each packet with 1/2 teaspoon Parmesan. Fold top half of foil over and seal with triple fold. Place on cookie sheet and bake 18 to 20 minutes. Remove and cut open packet. Fold back; sprinkle with remaining cheese and broil until golden. Serves 2.