Meanwhile, add ricotta cheese, 1 cup (113 g) mozzarella, Parmesan, spinach, egg, garlic, 1 tablespoon (4 g) parsley, basil, Italian seasoning, garlic powder, onion powder, red pepper flakes, salt and black pepper to a large bowl. Mix thoroughly until the spinach, cheeses, herbs and seasonings are evenly distributed throughout the ricotta filling.
1 tub (15 oz / 425 g) whole milk ricotta cheese, 2 cups (8 oz /227 g) shredded mozzarella cheese, 1 cup (100 g) grated Parmesan cheese, 5 oz (142 g) frozen, chopped spinach, 1 large egg, 4 cloves garlic, 2 tbsps (8 g) chopped fresh parsley, 1 tbsp (3 g) chopped fresh basil, 2 tsps (4 g) Italian seasoning, ½ tsp (1.5 g) garlic powder, ½ tsp (1 g) onion powder, ¼ tsp (0.5 g) red pepper flakes, ¼ tsp (0.8 g) kosher salt, ¼ tsp (0.5 g) black pepper