Lighter Spinach and Artichoke Dip

INGREDIENTS

2 cups

shredded part-skim mozzarella cheese, divided

1/2 cup

nonfat plain yogurt, divided

1/4 cup

grated fresh Parmesan cheese, divided

1/4 tsp

black pepper

3 cloves

garlic, minced

1 14 ounce can

artichoke hearts, drained and chopped

2 8 ounce packages

1/3-less-fat cream cheese, at room temperature

1 10 ounce package

frozen chopped spinach, thawed, drained and squeezed dry