Saucy Spinach and Cottage Cheese Stuffed Chicken

boneless skinless chicken breasts

kosher salt and fresh ground pepper (, to taste)

olive oil

bag (8 ounces) fresh baby spinach

garlic cloves (, minced)

kosher salt

low fat cottage cheese

part skim shredded mozzarella cheese (, divided)

egg white

tomato/spaghetti sauce

tomato paste

chopped fresh parsley (, for garnish)

cooked whole wheat pasta ((optional))