in a freezer bag squeeze the juice from one lemon, add mustard salt and pepper then place the chicken breasts in the bag. smush everything around the chicken and try to remove as much of the air as possible from the bag before sealing shut.
place the bag in the fridge for 1 hour or over night to marinate
in a small bowl mix together mayonnaise, paprika, Italian seasoning, and garlic salt then set aside.
line a baking sheet with tin foil and pre heat oven to 350°f
remove chicken from bag and place on baking sheet.
season with some salt and pepper
using a small basting brush divide the mayo mixture onto the 4 pieces of chicken and spread evenly over the breast being sure to coat the top and sides of each piece of chicken.
sprinkle parmesan cheese over each piece of chicken.
bake in the oven for 30 min or until fully cooked.
serve on the side of salad or rice and veggies and enjoy!