Preheat the oven to 400°F (200°C). Spread the frozen ravioli evenly on a baking sheet lined with parchment paper.
In a small bowl, combine the minced garlic, olive oil, salt, and pepper. Drizzle this mixture over the ravioli, ensuring an even coating.
1 bag frozen ravioli
Bake the ravioli in the preheated oven for 15-20 minutes until the edges are golden brown and the cheese begins to melt.
Remove from the oven and sprinkle shredded cheese evenly over the top of the ravioli. Return to the oven and bake for an additional 5 minutes until the cheese is melted and bubbly.
1 bag frozen ravioli
Once bubbling and golden on top, remove from the oven. Let sit for a couple of minutes to settle, then serve the crispy, cheesy ravioli casserole hot with your favorite garnishes.