Combine bread crumbs, Parmigiano, roasted garlic and olive oil in a food processor and pulse until mixture resembles coarse sand.
Coat each avocado ring in the breadcrumb mixture, pressing to adhere the crumbs on all sides. Place rings on a sizzle plate and broil until the top coating is brown and bubbly, then flip and broil the second side.
Sprinkle rings with sea salt flakes and serve immediately.
Did you know the avocado is a fruit, not a vegetable? Learn more about the amazing avocado, including its rich history, cultural impact and tasty ways to eat this delicious superfood in guacamole as well as other dishes!