Spinach and artichoke dip

Name: Spinach and artichoke dip
Prep time: 10 min
Cook time: 20 min
Total time: 30 min
Cuisine: American
Ingredients: 1 14 oz can of artichoke hearts (drained); 1 10 ounce package size frozen chopped spinach thawed (and drained); ½ teaspoon garlic powder; ⅓ cup freshly-grated Romano cheese; ¼ cup freshly-grated parmesan cheese; 1 cup shredded mozzarella cheese separated; 1 package of cream cheese room temperature; ½ cup sour cream; ¼ teaspoon salt; Pinch black pepper; Pinch red pepper flakes; ½ teaspoon onion powder