Creamy Lemon Pepper Chicken Meatballs

Ingredients

• 1 small or 1/2 medium yellow onion
• 4 cloves garlic, divided
• small bunch fresh parsley
• 1/2 c. unseasoned fine dry or panko breadcrumbs
• 1 c. whole or 2% milk, divided
• 1 large egg
• 1/2 t. kosher salt, plus more if needed
• 1 T. plus 1 t. lemon pepper seasoning with salt, divided
• 1 1/2 lb. ground chicken
• 2 T. unsalted butter
• 2 T. all-purpose flour
• 1 1/4 c. low-sodium chicken broth
• cooked egg noodles, mashed potatoes, steamed rice, or crusty bread, for serving, optional