Baked ravioli casseroles are very much a modern American comfort food—somewhere between classic Italian baked pasta and the Midwestern hotdish. Instead of boiling and layering fresh pasta sheets, we lean on frozen cheese ravioli, which are essentially little stuffed pasta pillows ready to behave like lasagna noodles. This three-ingredient version is wonderfully straightforward: you’re building a cozy, cheesy bake straight from the freezer to the oven, with almost no prep and no chopping. It’s the kind of weeknight dish that works when you’re tired, short on time, or cooking for people who just want something saucy, cheesy, and familiar. You still get that satisfying, bubbling top and tender pasta, but with a fraction of the effort and dishes.
This ravioli casserole is rich and cheesy, so I like to balance it with something fresh and crisp on the side. A simple green salad with a sharp vinaigrette—think mixed greens, red onion, and a basic olive oil and red wine vinegar dressing—cuts through the richness nicely. Garlicky roasted vegetables, such as broccoli or green beans, are also a good match and can roast on a lower rack while the casserole bakes. If you want to lean into the comfort-food angle, add warm garlic bread or a crusty baguette to soak up the extra sauce. For a slightly more composed meal, serve with a straightforward antipasto plate: olives, sliced cucumbers, cherry tomatoes, and a few slices of salami or prosciutto.
3-Ingredient Oven-Baked Cheese Ravioli CasseroleServings: 4–6 servings
Ingredients
1 (24–26 ounce) jar marinara or other tomato pasta sauce
1 (25–28 ounce) bag frozen cheese ravioli (do not thaw)
2–3 cups shredded mozzarella cheese (about 8–12 ounces)
Directions
Preheat your oven to 375°F (190°C). Lightly grease a 9x13-inch baking dish with a bit of oil or nonstick spray to prevent sticking.
Spread a thin layer of marinara sauce (about 1/2 cup) over the bottom of the baking dish. This helps keep the ravioli from sticking and mimics the way we sauce the bottom of a lasagna pan.
Arrange a single layer of frozen cheese ravioli over the sauce. It’s fine if they touch or overlap slightly, but aim for an even layer so they cook uniformly.
Spoon more marinara sauce over the ravioli, using about 1 to 1 1/4 cups, and spread it gently to cover most of the pasta. Sprinkle a generous handful of shredded mozzarella over the sauced ravioli.
Repeat the layering—ravioli, sauce, then cheese—until you’ve used all the ravioli. Finish with a final layer of sauce and a thicker blanket of mozzarella on top. You want the top well-covered so it bakes into a bubbly, browned crust.
Cover the baking dish tightly with aluminum foil. Bake, covered, in the preheated oven for 30 minutes. Covering traps steam, which helps the frozen ravioli cook through without drying out.
After 30 minutes, remove the foil and continue baking for 10–15 minutes, or until the casserole is bubbling around the edges and the cheese on top is melted and lightly golden. If you prefer deeper browning, you can switch to broil for 1–3 minutes at the end—just watch it closely.
Let the casserole rest for about 5–10 minutes before serving. This brief rest allows the sauce to thicken slightly and makes it easier to scoop neat portions, much like resting a lasagna.
Variations & Tips
Because this recipe is so streamlined, it’s easy to adapt to your taste or what you have on hand. If you’d like a bit more flavor depth without adding extra prep, choose a robust sauce such as a roasted garlic or tomato-basil marinara; the sauce does most of the seasoning work here. You can also swap the plain mozzarella for an Italian blend that includes provolone or fontina for a more complex cheese pull. For a heartier casserole, tuck a layer of sliced pre-cooked Italian sausage or meatballs between the ravioli layers—this technically adds another ingredient, but it’s a useful upgrade when you want more protein. If you’re cooking for spice-lovers, use arrabbiata sauce or sprinkle crushed red pepper between the layers. To keep things vegetarian but add more substance, scatter a handful of thawed, well-drained frozen spinach or chopped jarred roasted red peppers between layers of ravioli and sauce. Finally, if you prefer a slightly crisper top, bake the dish uncovered for the last 15–20 minutes and use the upper third of your oven so the cheese develops more color and texture.
