Preheat your oven to 400°F (200°C) and line a baking sheet with parchment paper.
In a large bowl, combine the ground chicken, ricotta cheese, Parmesan cheese, breadcrumbs, egg, minced garlic, oregano, basil, salt, pepper, and chopped parsley.
Mix the ingredients with your hands or a spoon until just combined; be careful not to overmix.
Using your hands, form the mixture into 1-inch meatballs and place them on the prepared baking sheet, spaced about an inch apart.
Bake in the preheated oven for 20-25 minutes or until the meatballs are cooked through and slightly golden brown on the outside.
While the meatballs are baking, warm the marinara sauce in a small saucepan over low heat.
Once the meatballs are done, serve them hot, drizzled with warm marinara sauce.