In a large bowl, stir together the softened cream cheese, yogurt, garlic, salt, pepper, diced green chiles, red pepper flakes, and onion powder until combined. Add the artichoke hearts, spinach, 1 cup of the mozzarella cheese, and green chilies and stir well.
1 (8-ounce) package reduced fat cream cheese, 3/4 cup plain nonfat Greek yogurt, 2 cloves garlic, 1/4 teaspoon coarse salt, 1/4 teaspoon freshly ground black pepper, 1/2 teaspoon onion powder, 14 ounces artichoke hearts, 10 ounces frozen chopped spinach, 1 1/4 cups mozzarella shredded cheese, 1/4 teaspoon red pepper flakes, 4 ounces mild diced green chilies,