The Most Popular Casserole of 2025 Is Also the Easiest

When it comes to casseroles, we know a thing or two here at Simply Recipes. From retro favorites to pasta casseroles, big breakfast bakes to summer-leaning meals—if there’s a beloved casserole out there, we’ve made it.

Our casserole-loving readers have been along for the ride, of course, revisiting recipes again and again and helping us source our top rated and most loved casseroles. But there’s one recipe that stood out among the rest this year. Burnished and cheesy, it took the number one spot as our most popular casserole of 2025: Million Dollar Ravioli Casserole.

It’s a casserole that truly checks all the boxes, keeping things simple but full of flavor. Store-bought ravioli is layered with meat-fortified jarred marinara sauce and plenty of cheese—four kinds, to be exact. The cheater lasagna serves a crowd but also makes great leftovers. It's a one and done meal that truly doesn’t need anything else to satisfy.

What Makes It Million Dollar?

Inspired by the viral Million Dollar Spaghetti, recipe developer Meghan Splawn amped up her family’s beloved 4-ingredient ravioli lasagna (which ironically won the most popular casserole title last year) to create this million dollar take with the hopes it will make any eater (herself included) exclaim “Wow, this tastes like a million bucks!” with each and every bite.

She added to her base recipe at every step of the process to make it more decadent and big enough to feed a crowd while keeping the building blocks as simple as possible. The recipe still relies on premade ravioli and jarred marinara, but levels them up by adding Italian sausage and ground beef to the sauce, and layering in a really rich cheese mixture made with cream cheese, ricotta, and sour cream. The entire casserole is then topped with mozzarella and Parmesan cheese for a crispy, deeply browned finish that’s the cherry on top of our king of all casseroles.

Use Fresh or Frozen Ravioli

While the recipe itself calls for fresh cheese ravioli, Meghan notes that you can use frozen ravioli here, too. The cooking time will be a little longer to ensure every ravioli is heated through properly, but it can be layered up just the same.

Meghan prefers to keep the ravioli here as simple as possible, choosing either cheese or meat, but you really could use whatever filling you’d like, from wild mushroom to spinach and ricotta, even butternut squash or pumpkin.