Spinach Artichoke Dip

Name: Spinach Artichoke Dip
Prep time: 15 min
Cook time: 25 min
Total time: 40 min
Cuisine: American
Ingredients: 10 ounce package frozen chopped spinach, thawed and excess moisture squeezed out; 14 ounce can artichoke hearts, drained and finely chopped; 1½ cups shredded Monterey Jack cheese, divided ((6 ounces)); 1½ cups finely shredded or grated Parmesan cheese, divided ((6 ounces)); 6 ounces cream cheese (at room temperature); ½ cup mayonnaise; ½ cup sour cream; ¼ cup milk; ¼ cup heavy cream; 2 garlic cloves (finely minced); 1 teaspoon crushed red pepper flakes (optional); ¼ teaspoon salt; ¼ teaspoon ground black pepper